I will agree that bugs are probably my least favorite of the 3 factions, but I don't think they are complete shit. Just in last place compared to the other two. It's weird because a lot of what makes them annoying for people (including me sometimes) is by design and working as intended. Compared to bots when the game was newer and AH didn't realize that infinite ammo and perfect accuracy was not very fun at times and should probably be tuned.
To play devil's advocate, there are some things I genuinely like about bugs.
1. Mechs are the best on the bugs in my opinion. Like with the Illuminate, they consistently hit that sweet spot for difficulty where it feels satisfying to use them.
2. Weirder support weapons that aren't as good with bots and squids like the grenade launcher, arc thrower, airburst launcher, and flamethrower can be great on bugs.
3. The gas mechanics seem to work best on bugs.
4. They encourage different primaries than bots and squids, some of my favorite weapons are best on bugs.
I don't begrudge people who don't like them. I just disagree that there's no fun in playing them at all.