I'm surprised I'm not obsessed with them! Haha.
When it comes to video games, those menial achievements next to a game on my profile mean way too much to me. I will go out of my way to get the dumbest, cruelest, and most insane ones if it means I can say, "Yeah dude, I 100%'d that game."
On the other hand, when a website (such as a forum~) offers me emblems/achievements/trophies/some weird leveling up system/etc. it just doesn't feel quite the same.. I'll still try, if the challenge is fun, but I certainly won't go out of my way.