I also called Fanfire a few times and was told the 90,000 members as well. That was the day before the presale.
Here's the worst part...I called Fanfire after U2.com was advertising the memberships, sometime in late November, and a Fanfire sales rep told me there was no limit on the number of presale shows you buy from as a member, just a limit on number of tix per show. I ordered the membership, then we got all the emails from U2.com around January 20 that started to really tell us the details that we never saw before- the one show limit, the 10% of tickets released per venue, and the limited concert schedule that was backwards from previous tours. I called Fanfire Monday, Jan. 24, the day before the presale and ANOTHER SALES REP TOLD ME AGAIN THAT THERE WAS NO LIMIT ON THE NUMBER OF PRESALE SHOWS THAT MEMBERS COULD BUY. Twice I was told that. I asked for a supervisor, and she said there is a limit, but the damage was done- I already bought the membership. I wonder how many people who bought memberships were told this false information. I bought my membership because they directly told me there was no limit. Now they won't even offer refunds. IF you were lied to/ bought your membership on false grounds, like I did, you should be eligible for a refund.