Hello all! I want to ask the community for some advice. I'm working on an extension that can create a discussion based on some blog-entry by having a link which sends a the text and title to the Vanilla forum. I'm creating this extension for grouphug.us, but I will also upload it to the add-ons. Grouphug wants to create the discussion with a system-account. This means you can just click the link and it will be automatically created. The thing is... we don't want spam, so how could I verify if the post-data is from the blog and isn't some automated input? Any thoughts?

Realistically, there's no good way to block spambots.

Even if it's not totally safe, you can catch the referer... Better than nothing.

Another idea: add a code, just like a password.