Thanks for the vote of support @Fastidious ! After reviewing my initial post, I just realized I referenced the wrong plugin (I have too many tabs open!)

newuser-invitation is the plugin I sent a pull request too and it has already been merged, should be getting deployed to npm soon.

My post is in regard to NodeBB in general now, and if I should send a PR to the core project. It may be easier to explain my issue step by step.

1. Invite user to my forum with their email address ([email protected]). The newuser-invitation plugin does it's thing, and now lowercases all emails added to it, so the email is now stored as [email protected]
2. User gets email pointing to myforum.com/register on their mobile device and decides to register.
3. When filling out the registration form, their mobile browser auto capitalizes the email address, and it is now [email protected]
4. The new users hits submit and they are rejected from registering because the email address [email protected] is not in the invitation queue, but [email protected] is.

That is the issue I'm now looking to solve. My proposed solution is to lowercase all emails on the registration form prior to registration. I'm not sure where else this change will have effects if any; looking to the community to chime in on that part before I go spend time on this change if it is really a bad idea in the grand scheme of the codebase.

Thanks again!

@yariplus my mistake; the lowercase did have to happen in your plugin, not the core project. Just made the changes and will be sending you a PR shortly...