If you are finding yourself unable to log in, you should be able to fix the issue by following the following process.
1. Close all browser tabs with any part of Bulbagarden open.
2. Delete all Bulbagarden.net cookies (and if possible, any cached site data for Bulbagarden) from your browser.
3. Close and reopen your browser, open a new tab, and log into the forums on the new tab.
If you've followed this process and are still having issues, please contact us via the "Contact us" link at the bottom of the forum.
I dunno if you still look at your ditto give-away thread?
(I posted there 3rd June 2011, but maybe you haven't seen it yet...)
If it is still possible, I would like a ditto (or 2, if possible) (nature doesn't matter)
(Please VM/PM me...) :-D