Suggest user to register as real user, but can also contribute anonymously. Technically all users have usernames, but some have generated "anon123" without explicit password. A bit similar to waze solution. Enable to use FB/Google/twitter oAuth for authentication.
Suggest user to register as real user, but can also contribute anonymously. Technically all users have usernames, but some have generated "anon123" without explicit password. A bit similar to waze solution. Enable to use FB/Google/twitter oAuth for authentication.