Dunno, I've no idea how you do, but I recall that during AI expansion's heyday, good top tier MPs could be in the top 3 of DD'ers at endgame.
They weren't ever bad to have around for normal stuff either. Especially since now the forum is full of cries about how there's noone to team with, yet they still refuse to team some guy who might not be the "perfect" fit for the team, but it's at least another guy to join that will do all those things another person in a team does just by being there.
People don't need to be polite to invite you, they should just be pragmatic. Why NOT invite you? There's somebody better? Is there? If there is, why don't you start a team and invite him then
or would they not join because /tell helpbot whois tanisthonus "OH NO MP"?
And if your org goes "you can't join, you're an MP" or along those lines, maybe you should find another org.
But yes, it's an infestation of stupid. An unwillingness to do anything that isn't the imagined optimal and always keep the options for being even better open. Although then I don't get why they don't invite the "gimps" and just kick when that perfect somebody shows up on LFT.