I assume it's stalled at $59,999, not letting me donate, coz of the daily limit?
Since a lot of users are in different time-zones, making it hard to keep track of when the funds "midnight" reset is, maybe put a notice somewhere visible, like the front page or thread OP, saying when credit card donos are open, and when it's stalled at the limit?
The less barriers to donation for retards like myself, the more effective fund-raising will be. (personally, I wouldn't cap it at $75k, either. If people are happy to support the site, above $75k, let them)