Depends on what content you're complaining about players not being melded. If you're ilvl synced your materia is as good as nothing, so unless it's end game stuff it's really not as big of a deal as you're making it out to be?

I've actually had people refuse to start a fight because I wasn't melded before and demanded I meld before they pulled (Since I was a DPS). Then got vote kicked when I melded low ranked materia since that was all I had.

People really need to calm down about the small stuff in this game, but that's a lot of the english forums honestly.