105 sats \ 0 replies \ @beorange 4 Aug 2022 \ on: mCaptcha: Proof of work based, privacy respecting CAPTCHA bitcoin
Other interesting idea to fight spam on blog comments, discussion forums and many other scenarios is by requiring a small lightning payment. Just like it is done on this site, but it would have to be built a bit differently without requiring accounts.
I imagine something like:
- Click "Comment"
- Server provides a LN invoice
- User Scans QR and pays
- Comment is posted on the website