Especially when you clearly don't understand them.
If you, as a Maran, tell an Acolyte "Hey.. I need your help or I'll probably die", and the Acolyte doesn't help you.. they're probably being a bad Acolyte. That's obviously vague, but there are many many scenarios where you can force a person into doing something that isn't fun via RP restrictions. Goodies generally can't abandon their allies, they can't tell them to fuck off, they can't really do much of anything about someone who's being overly demanding and annoying.
Everyone likes to say that good align has life easy (request, easier ranking, allies that don't turn on you, etc), but the downside of that is that you have to actually act GOOD, which means many times you aren't acting in your own best interests. For most players, there's a general social understanding that you don't take advantage of that fact. You don't ask a character to do something that RP-wise they would do, but fun-stick wise it would suck for them.
For whatever reason, you don't follow that social understanding though. As a player, you apparently don't value how much fun other players are having.. you only seem to value what they can do for you personally. And that's why people dislike having your characters as allies.
You're good at PK and you have a solid amount of area knowledge. In most cases, those facts would mean you'd be an awesome person to have on the team. But if you polled characters that have interacted with you.. most of them would probably prefer to have you as an enemy. Sure, they may die more. But at least they wouldn't have to tolerate you. And for most players, that's a win.