I think the PayPal link will be great. There are so many banner sites and pages full of crap. People will recognize the value of a clean, smooth website loaded with content.
I'd donate money in a second-- Just so I could post anything without worrying "is it directly moped related?"
If you get fired from a job, or you hear some cool news... You have a great idea etc... you should be able to post it.
The forum rocks, and with the upcoming paypal link bandwidth should be less of a concern.
Simon seems like one of the nicest guys out there-- I've often wondered if I'm costing him any money-- that would suck.
**Question for Simon: Have you considered adding a feature similar to the "Posting Statistics" page, but with the information you provided when I asked what the actual "raw" numbers were for a month? I remember being astounded by the amount of hits and data going through this website.