Zardnaar
Legend
It absolutely had its issues. However, if you play it with people who aren't out to break the game with super uber combos and just have fun with it, the sheer number of races, classes, feats, prestige classes, etc. allowed you to very accurately create just about any character concept. 5e doesn't have nearly as many, so quite often you have to settle with kinda sorta getting close to the concept.
I suspect most games didn't go that high in level.
The big divergence between forums and IRL. People on forums often assume there opinion is correct and there way of playing is the obe true way.
Most games of 3.5 I saw weren't played by powergamers. Elements of it could creep in.
I have 50 odd 3E books. Players didn't use them that much. They didn't know to grab this item from that book add it to these 2 PrCs or they didn't hit the required levels.
Druid 6 + natural spellwas probably about the worst it got at most tables. And the Druid wasn't a popular class in 3.5.
If games ended around level 7 back then I think we have a big contributing factor to 4E tanking. As late as 2014 a Pathfinder group wasn't using wands of CLW. Online assumptions and all that.