Considering I've been running 5e since the Plague Year, I wouldn't call myself a hater. I did notice, however, this very pattern whenever I voice concerns about anything with the rules - first people assume whatever flaw or exploit I point out, has been used in my group and then their solution is always to leave the group or kick someone out of it, and if it didn't happen in my group, then it means it doesn't ever happen. It's a catch-22 debating with these people.

It's impossible to make it perfect, but it's trivial to make it better. For example, get rid of Silvery Barbs.

And we'd really hope with a large corporation behind it, they could do more than get rid of the obvious. They could do the playtesting necessary to properly balance martials vs casters.

every ttrpg has had rules that can be exploited and abused

That's true for games in the tradition of D&D/F20/Trad, but not all ttrpgs. Fewer rules, a tighter scope and more elegant design make it much easier to rule out the kind of bad interactions or edge cases that lead to rules that run counter to the game's purpose.

My Life with Master, Fiasco and Fall of Magic are all games i've played, where exploitation or abuse of rules is just not possible. Unbound is a tactical combat rpg without any room for abuse of rules.
John Harper's rules-lite DW hack World of Dungeons is probably too elegant for abuse to be possible.

That's the first few that I can think of, but i'm sure there are plenty more.

You are just a 5e hater.

Yes (though mostly a 3.5 hater, though hate is probably way too strong a word, more like a "I wish 80% of RPG players played something else") (I haven't played 5e, played a bunch of 4e)

I agree and I’d take it one step further: it’s undesirable to play games with elaborate exploit / abuse guards. Those systems suck! They’re boring, same-y, and labyrinthine. I literally don’t care about pvp, or balance, or “winning”. It’s not that kind of game play

The nirvana fallacy is to substitute a good solution (fix a broken rule or exploit) with a perfect solution that is obviously impossible (create an airtight ruleset), then use that to justify doing nothing.

i wanna see someone run a broken build in Yazeba's Bed and Breakfast