Things have definitely changed, I'd say Season 5 it felt quite a bit different. I still like most of it (and some I didn't like as much at first but like after seeing it a few times).
It's a very watchable show still, but can understand people getting tired of it. I kinda watch in binges (where I won't watch it for like most of a year and then watch it a bunch in like a 2 week span).
I stopped watching around mid season 8 so maybe I should pick it back up as well.
Season 8 wasn't bad although it was a little odd in them recycling a bunch of their gags. They've pushed that a lot in the past few seasons. It's been hit and miss but the show is still mostly enjoyable.
Season 9 is weird I didn't totally enjoy it, but I'm enjoying season 10 quite a bit.