I’ve watched this series several times, and i think a lot of what you are saying is fair, but i think you miss the point a bit on Barney. The entire show is a framed story of Ted retelling things that happened decades earlier. The way the show is written, Ted is making it seem like Barney behaves over the top, either to fit his narrative or simply because that’s how he remembers it.

One of the reasons it’s funny is because a lot of people know “that one guy or girl” who behaves that way, but then when you tell stories about that person you make it even more wild.

Lily does suck though, and I’m surprised she’s still friends with anyone