Okay, I solo mostly because no one wants to play with me. Today though I helped someone do heroic quests and had a great time though I also think social points favor pvpers and that's fine with me if I didn't have a quest telling me to get a social badge, lol, don't even know how to do it.
BTW, I'm on the Ebon Hawk server. I have two characters, a republic trooper and a sith warrior. Does anyone want to play with me? I'd love to do some flashpoints eventually. My trooper is only level 12. My sith is level 3 or something. PVP is definitely not my thing. PM me if you'd like to play with me or invite me to your guild.
Oh, OP, I disagree with you. I think most people like to group. It's just hard to find a group who wants you.