Welcome to the Gang of Five forum.

I, too, have watched My Little Pony: Friendship is Magic. I've seen every episode over all nine seasons (as well as the movie that takes place between Seasons 7 and 8). I'm not sure if you're even aware the series ended just last year, seeing as you've watched practically right up until at the halfway point of the entire series, but I will say I certainly liked some of the characters that were introduced in the later seasons.
Personally, I'm more interested in the spinoff series Equestria Girls, and have also watched all content in that series (four movies, three half-hour episodes, five hour-long specials, and numerous YouTube-exclusive shorts). In fact, over on fimfiction.net (a fanfiction site dedicated exclusively to MLP fanfiction), I've been writing a fanfiction series that's basically an alternate version of the events from the Equestria Girls series based in a world made of Lego. Not sure if you'd find that interesting, but I just wanted to mention what I've been doing as a fan of MLP over the past few years.
We do have a discussion topic about MLP here on this site, but it's been so inactive these days that it's pretty much almost entirely just my weekly updates on the latest new content. With the end of the FiM series last year, this year has had episodes of a new series called Pony Life, but trust me, you'll be much better off watching the rest of Friendship is Magic than watching
any episodes of Pony Life. The only reason I'm even bothering to watch those episodes is for the sake of awareness of just how bad it's been at times and inform other MLP fans here about it (so they don't have to watch it if they don't want to).