The token is optional and can be used for tipping, allowing you to earn some money by posting on Plebbit. However, using the platform is completely free.

It’s a text based. No one can spam images

Yes

IMO Plebbit should reach MVP status by summer (p2p in browser/fix of speed and challenge bugs, sms auth service). Shortly after plebbit will also have a mobile app in app stores (by eoy). Also the indexer/archiver (search posts and subs in apps and google, SEO) sometime by end of summer.

https://github.com/plebbit