This forum really similar to Discourse but I Still prefer Discourse.
I saw some feature which really benifit for Discourse and I hope Discourse Dev team Consider.
GitHub - flarum/lock
GitHub - flarum/sticky
are there any locking feature some part in topic like that?
Could you show me a screenshot of your topic view page?
your shown option I have too. But I want a function which hide some contents from guest until they signup.
ohhhhhhh, wait, there is a plugin for that, one second
if you want to tell me about guest gate plugin, It still bug and It not What I am looking for.
Flarum is the first true competitor to Discourse (not to mention that it is free). XenForo was sort of just a modernized version of vBulletin.
I cannot wait to see what the future holds! 
We don’t have a plugin that locks specific content within a post. The closest thing we have at the moment might be this theme component that allows you to show a preview of a protected category.
