Totally valid points. The first one is my core music listening philosophy. The second doesn't affect my listening. I know a bunch of the artist I love are shitty people, but I try (with a near perfect record) to separate the artists from the art. I focus on the latter, because that's what I care about. To that end, many (the vast majority) successful creative people come off as douchy to me. Part of it is the endless confidence one needs to instill in oneself to survive to the point of success (or even failure). Another part is often fueled by success, being the more recognition you're getting and the more people telling you how awesome you are the more likely you are to start buying into the bullshit. Obviously, some of these folks are just pricks, and fame doesn't help cure that affliction in the slightest. Lennon was a prick for stretches as well and note everyone has nice things to say about the Macca.
It's actually part of why I never talk to the celebrities/artists I've been near/around for some reason or another, nor do I seek them out. If I like their work, I've invariably supported in some manner (buying albums, seeing shows, etc.). That's my thanks for their work. I don't need to bother them or assume they give a shit. Now, one might miss out on some cool talks with great musicians (as many have posted about), but I'm okay with that.