As we recover from the previously-mentioned attack, here: https://saidit.net/s/SaidIt/comments/10qz/saidit_is_back_online_after_a_few_days_of_attacks/
we are beginning to re-introduce the 4 features that we've identified as potential vectors of attack. Our first priority is to re-enable registration as we know many people are waiting to join saidit. So now we have a new registration captcha, which will help protect saidit from automated registrations. Also as a new user it's possible you may see captchas until you get a vote from someone else, we are testing this secondary feature.
We are next working to restore thumbnails, chat, and title suggestions. These are more difficult though, and may require us to set up a second server, so it may be a few days or weeks as we get to each one.