Why do Riven mains talk so much about Riven's High skill cap?
Yes Riven has a high skill cap, but you ain't BoxBox or BRNA playing against Master/Challenger and LCS players who know every matchup to a high level. You're spamming Q vs Golds who don't know the matchup well enough to realise when they can be all-in'd. And once Riven gets the first kill in lane it is snowball time gg because jungler isn't going to camp the lane to help their laner recover vs Riven. Then you can look forward to Riven 1v3'ing the team and typing GG EZ NUBZ or OMG MY TEAM SUX I WIN LANE BUT THEY FEED. REPORT!
As soon as a champ appears in top lane that counters Riven suddenly you start to see just how unskilled these same Riven players are. When I see boxbox play vs Garen, Darius and Hecarim I'm in awe at how well he plays those difficult matchups against extremely skilled players. I watch boxbox play vs Hecarim a lot and it amazes me how well he plays that. That is the high skill cap of Riven.
When I play as Hecarim vs Riven players, I see nothing but freelo riders who have no idea what to do when they actually have to use their brain and can't just mash out abilities every time they are on cooldown and if they make a mistake... they can actually be killed instead of being able to just dash away with one of their near infinite dashes or BS movespeed.
Without fail 50% of these Riven players respond with "Fucking OP champ Hecarim".
TLDR, Riven is high skill cap, but she is extremely strong even in the hands of unskilled players. All those people talking about her as being high skill cap, aren't even remotely close to skilled with her and think auto attacking between Q's is skillful.

mains have when they defend her not being a really easy low skill champ.
rank on the skill cap? I know she can wreck people, but in my hands I'm lucky to get a kill without dying in the process :(
and
because RIP wriggles :'(
players like the OP described in their tracks.