Here's an excerpt from an email I got from Friendster:

Our site is currently experiencing technical difficulties due to high usage, primarily issues with database lag. As a result, you may receive e-mail from Friendster notifying you that a friend has sent you a new message, but you may be unable to access the message because it does not appear in your Friendster inbox. You may also experience problems when trying to delete messages from your inbox. In addition, you may notice that changes you have made when editing your profile have not been saved, photos you have uploaded may not be displayed, or you may not be able to approve/reject/delete pending friends, testimonials, messages, or bulletin board posts. Even though your profile/friends list/testimonials/photos do not appear to have been updated, please be aware that our servers have saved and stored this information. Finally, the e-mail server that sends out the verification code you should receive after creating a new profile or changing your e-mail address on your Friendster account is also experiencing lag[...]

Hm... Anything else?

I do understand that the Friendster service has become wildly more popular than anyone expected, but having experienced some of these very confusing oddities first-hand (and thus contacted them, and thus got on this mailing list), it's clear they have some truly wacked-out error handling code (or lack thereof) going on behind the scenes.