LP gain and loss in TFT

Just had a game where i got 8th place because everyone else was super high rolled, two people with 6 nobles at level 6, another person with 3* rengar fully stacked etc. and it gave me -69lp in diamond 3 and caused me to demote. Which for some reason after the demote it gave me EVEN less lp than what it supposedly reduced, sitting at diamond 4 with 8lp.

The very next game i got first place and it gave me +31lp... so i'd need two MORE first place games just to get back to where i was because of 1 unlucky game. I know people say "well it has to be like this or else you would just infinitely climb" but i don't see any truth to this, I don't see why there can't be fixed values for winning and losing, saying that "you'll just infinitely climb" is basically saying "you'll just infinitely win" which is obviously not true.

Maybe i'm not thinking about some crucial aspect to it but all i can say is that it really does feel very, very bad.

Compare it to regular ranked league. You have to lose an insane amount of games in a row, to lose more lp than you gain.

This is true. I am Bronze 4 with Iron 2 MMR in regular SR and lose -18 for a loss and +16 for a win.

In TFT I am Plat 3 apparently playing with other Plat 3/4 and I gain +45 for a win -55-60 for a 8th place loss in Plat 4 and + 35 for a win in Plat 3, a 8th place loss takes me down to 0 LP.

Based on the differences between the LP gain/loss in these two divisions, the system seems to really care if a player is just one division above where it thinks they "belong" whereas in SR it doesn't really care unless the discrepancy is huge.

Also, this is just a suspicion since Riot doesn't reveal what the ranked MMR system actually does, but if your rank is a full tier above where your MMR belongs (ie Silver 4 MMR in Gold 4, Gold 1 MMR in Plat 1), I have a feeling the system tries to say "You cannot pass" by matching you with players of your Rank rather than your MMR while keeping your LP gains low until either your MMR rises to match your rank, your Rank drops to match your MMR or they meet somewhere in the middle. So you're playing against much better opponents with low LP gains and high losses, and that's what seems unfair if it is the case.

Ya that happens around plat+ in tft kinda seemed pointless to continue to grind. But hey tft ranked rewards are going to be a thing.. Suppose anything above gold prob the same reward maybe a emote that shows off our tft rank .. maybe then I would bare the horrible -99 lp on loss.

I agree, once you hit plat it almost seems like a punishment to continue to attempt ranked because you can spend 3 hours placing top 3 consecutively and on your last game of the day lose it all because you had no early items, or just could never get that 3rd champ to make a lvl 2 (that nobody else is even building)..... makes an RNG based game kinda stressful; and kills the fun aspect of attempting to climb when 2 6th places can completely erase the progress of 4 2nd places in a row (15 mins to kill multiple hours of climbing). These games are like 45 mins long when you end up going to the end, and to lose all that work in one game actually feels like they just don't want us to advance.

Well in TFT it's built a bit different from an SR game. You can climb faster because there are no Promotional Series (you instantly promote when hitting 100LP), and fall much faster because there is no Demotion Protection (instantly fall at 0LP). In Normal League you can build up a fair amount and then lose an even amount or lower amount comparatively because of the protections in place. So they had to make it a bit different so that it's fair overall when you compare the two modes.

Like when I was in Iron on TFT, I would gain 100 to 150+ points for a first place win, now in Plat I only gain 15-20 points for a first place win. So it cuts it down massively on the winning side as well so that people don't climb all the way to the top super fast. I will still lose 70+ if I come in 7th or 8th though as you can drop hard and it's to prove we really have the skill it takes to make it higher.