I've tried to join Twitter a few times, but I kept getting a 403 error. I eventually tried on a different computer using Firefox and it worked fine. So Twitter seems to be incompatible with IE6, producing 403 forbidden errors.
Yes, I still use IE6. It's on an older computer and it's handy to check site compatibility. There's still a lot of people out there using IE6, despite Windows Updated pleading with people to upgrade.
Anyway, I'm now on twitter here : http://twitter.com/brucerchapman
Join me in the conversation!