Yeah but there are so, so goddamn many of them, that why would I do quests that give No XP, when I have a bunch of quests in my log that give Yes XP?
I don't think that's weird at all. That's how we're conditioned as gamers not just by this game but literally decades of games. Also most of them aren't actually that interesting. A lot of them are you talk to a guy, he tells you a woeful tale about an awful monster that's been killing folks, you go to a place, use Witcher sense to follow a trail, kill a thing, and then return. I'll do most quests that are immediately apparent to be more than this but I'm pretty tired of using Witcher sense to follow a trail and listening to peasants talk about spooky monsters kidnapping their wives or whatever.