Make the donate page link more prominent on the Tildes homepage.
A more prominent link to the Donate page is probably going to be necessary at some point. The only link to it on the site is in the footer, which practically nobody reads (or often even sees). Adding a more prominent link in the sidebar or even on the header somewhere is probably a good idea... Even with people potentially developing blindness to it eventually, just for sake of making people aware of the option to donate being available in the first place is worth it, IMO.