Taking the thread's digression for a moment:
As someone who actually played a lot of 2E with the Skills and Powers rules (my main GM at the time also liked Hero) I can say that era of 2E was very similar to what 3E would be. From a character perspective you had options to use to put your character together in very specific ways, with far more customization than any other edition of the game. It was wonderful and terrible at the same time.
I would classify 3E as being the edition of the game that tried the most to be a "fantasy reality" simulator, as it had some very complex rules for building characters and monsters, and the two used the same rules--with the exception being that most PCs didn't get to use all of the monster rules. There was very much the expectation that a monster would be built "by the rules", and that sometimes led to some silly results where monsters had very high hit dice and then also had to have the skills and feats to go with it. As a fan of the Hero system myself, I can tell you that there were a lot of rules ideas that came out of Hero, which shouldn't surprise people because Monte was a former Hero designer (and a Rolemaster designer as well).
When people say that 4E returned to the "classic" or "old school" way of running a game (something that I agree with) they meant these ideas were tossed out. Monsters and characters didn't have to play by the same rules, and there wasn't a complicated structure to build creatures with. You had expectations for defenses, HP, damage and so forth, but you didn't have to actually construct them from the rules themselves, the creatures just had the stats you wanted them to have as the DM.
Similarly, characters were back to being able to try anything they wanted to thanks to page 42. I ran a lot of 3E and 4E games, and I had a player who knew all of the different feats that were out there. When someone wanted to try a stunt, he'd be all to quick to point out what they couldn't do because of not having feat X or class ability Y. I never once had that problem in 4E, nor would I expect it in 5E.
We now return you to your previous thread.