So, I've been logged into ff for probably 90 hours by now. At this rate I'll be able to play for another 40 before my blacklist is completely full... and every single one so far is from gilspam. Could square enix PLEASE do something about this? It's gotten so bad I have one window dedicated for just tells, and I don't pay attention to it anymore. Here's my solution:
add the ability to right click on player's name in the chat ---> report gil spam. Window pops up to confirm (or cancel) the request. If cancelled, things continue on as if the report attempt never happened. If confirmed, player being reported is unable to send any more messages to the player. If enough reports are filled against spammer, they are either automatically muted, so they can not comunicate in game for a period of time, or automatically banned for a period of time. (This ban is subject to review by a GM.)