Situation now All posting on the usual clearnet domains .org, .net, .gg are disabled. Magrathea.endchan.net can be used for that. Note: the captcha was broken, so all posting stops when "captcha enabled for all posts" is set in the setting. Moderation is possible via endchan.org. If you browse the site you can notice the political facade of the attack was ditched altogether, now it's just shit and recycled text from earlier posts. Note: we don't deal in investigations, who does it and what are the motives, so don't ask.
What we did Since we found recaptcha, hcaptcha and captcha in general insufficient, we believe Proof-of-Work route is more promising. We experimented with Kiwiflare and the suggested Basedflare, we found them lacking and not easily configurable for our needs. And while we experimented with them, they just caused annoyance to mods, users, and us. We decided to implement our own solution, this is now we are working towards. On the long run captcha's still can be added somehow, since they have to be solved, they still cost to the attacker.
About Wrongthink It is quite possible that wrongthink.net will be secured first because we have easier time to work with that codebase. For now some amount of flood is directed to it, we saw them each day. It is possible for communities to create hidden boards, and block whole countries from posting, however if you announce your board, it won't remain "hidden" for long and you can expect flood. WT lacks certain features to really offer an alternative at this moment, but on the long run perhaps all Endchan communities should move there.
To all the users: Thank you for your patience and your loyalty. Endchan experienced all kinds of issues since it was set up in 2015, and we might missing some limbs, but we are chugging forward like the Little Engine That Could.