I'll speak personaly for this responce, simply because the "community's vocal minority that partakes in all sorts of behaviours(including the ones you mentioned)DO NOT express me in any way:
I do not partake in such activities, nor I encourage them, but at the same time I don't give a fuck about them. Not in game-which is irrelevant to our point-but as communications toward Riot go. That is, simply because I, personaly, give no flying fucks about whatever angry memelord teenies have to say. They are just hollow, dumb words by dumb people. Besides, whether we like it or not, wishing cancer to someone UNDER NO CIRCUMSTANCES GIVES THEM CANCER. Subjectively, it can be a bad thing to say, but it's just that; words, and words can not cause deseases and whatnot. In addition, no matter how fucking hard people circlejerk here on the NA Boards(I can GUARANTEE you no other boards in this game have this hard of circlejerking going on), CertainlyT will keep working for Riot and produce content, Riven will be a shitty champion that's great to play and people have no clue how to play against, LeeSin will be OP, Rengar will be OP, Heimerdinger and Zed will be OP, etc etc etc.
Now that I've clarified that, there's the other side of this fenomenon. Let me give you an example: Digital Extremes, are the developers and publishers of a F2P game called Warframe. Now this game, has achieved RIDICULOUS development and UNPRECEDENTED growth. By that I mean, they started as a crowd funded project with founders, and now they have PC, Xbox1 and PS4, and are standing at the top3 F2P games on Steam. All that in almost 3 years. Imagine that, right? And they, despite their growth and fame, have kept top notch communication, policies and behaviour towards their consumer base. Now don't get me wrong, they are not without flaws, but they've not sunk like Riot has. Proof of concept, their support has personaly replied to me in many instances, both to my requests and dumb jokes on a friendly manner. No automated email trash, with tickets open for weeks on end, no "fake professionalism".
Let me itterate: Communication and policies are where Riot suffers. A WHOLE FUCKING LOT. When their art/music/gameplay production departments are stellar and keep raising the benchmark, their communications team, balance team, policies and public relations are trash. Shit-tier. That, on different terms, affects their face towards the consumer base. Now, don't get me wrong. I don't think they owe me in any way other than to keep providing me a F2P game with great gameplay and content. Since I've given them my euros for RP time and again. If I have that, I'm satisfied. BUT, when they keep fucking the game up, and pussy out on their responsibilities towards it, that's when I have my intelligence insulted, and get pissed off. Meaning that, albeit still having fun, you can't just do whatever the fuck you want and expect no consiquences. They keep making bad decisions one after another. And they turn their backs to the backlash, and then throw their cookie-cutter hypocritical apologetic shit towards us(they've done it 4 times already lol, and it worked EVERY time!). We're not all edgy memelord teenies, some of us are mature enough to demand some respect. +check out Montechristo's video on sandbox mode and Riot's policy+
With my train of thought, some feedback or direct correlation with their decisions and playerbase is to be expected. Especially when "a changed something" has such a massive impact on the game, since all we play is summoners rift. It's not like, we play lets say an RPG, and they change the color of an arrow set. They change an item, suddenly the balance of this game changes. People got angry at the brick wall they raised, Riot sends Repertoir to communicate with the boards for a couple of weeks, boards get happy and the angst dies out; "bless Repertoir" they say. Where the fuck is he now? His job was done, the frustration died out, and they can go back to erecting their wall at peace. When they seal us out, they'll send a shitty apology.
What could've been done? "We're revamping the lore, expect good stuff" -they remove summoners, the IoW, thus the lore has no fundations- -shit hits the fan, HARD- -they keep releasing shitty lore, reducing the existing one, changing/removing pre-established identities- -lore revamp has been going on for years- "Uhm, sorry guys, apparently we met some pretty big unforseen obstacles on the way which set us back(I shit you not, for this to reach us, booths and panels had to be filmed)" -still, nobody knows what this game is about- -let's release Bilgewater lore!-.
What should've been done? "We'll revamp the lore""Ugh, it appears we've had a series of unfortunate events, we'll keep you posted""We're sad to announce we've hit some pretty big obstacles with the lore, and we've resulted in a bad state, but we'll do our best to correct this issue, keep you guys updated on our plans and progress""Yes, do not worry, we won't be fucking any pre-established champion lore when the game does not practicaly exist in our world because of the obstacles we stumbled on".
To FINALLY conclude, they are really at fault here, for they frustrated, dissapointed, and insulted those who care. Fuck the edgy memelords, but why do I have to be disrespected like that? Their RP purchase systems work perfectly fine, they've never had issues taking my money. shouldn't I expect a proper Tribunal and not fucking stupid automated shit from a bot, and for trolls to be actually banned?
Sorry for the wall of text :(