The Daily Grind: How do you handle random party invites?

I don't know why, but sometimes I get discouraged when a random person sends me a party invite while I'm in the middle of questing. I know it sounds odd, but when I'm not playing with my regular group of friends or guildies, I like to just play alone. When someone whispers me to ask if he can join me, I usually turn him down (politely!), but if I get a random party invite without so much as a hello, I simply ignore it.

My own antisocial issues aside, I want to know how you feel about this topic. Do you think a random invite is a healthy way to find companions and possibly friends, or do you see it as an invasion of privacy while you're trying to quest?

Every morning, the Massively bloggers probe the minds of their readers with deep, thought-provoking questions about that most serious of topics: massively online gaming. We crave your opinions, so grab your caffeinated beverage of choice and chime in on today's Daily Grind!