1. I second letting classpectAnon help, there are way too few devs for a forum as it is.

2. The signup form is weird, making way too many requests per keypress even if the relevant fields don't change. Check the developer network tab if you don't believe me.

3. A bit of a security report. I think it's possible, with enough time, to extract all the user emails from the site by using the seemingly not rate limited valid email endpoint. This is a common problem and, while it might be too late, I think the actual solution for small sites nowadays is to only allow oauth signups with a google/discord/twitter account or whatever, let them handle the scrapers.