I've got the point. Thanks for all the help.
How hard it is to customize NodeBB?
For example, I would like to see these features:
Only those with reputation > X can reply my thread;
Only those with reputation > Y can reply to my message (here message means my reply to someone else thread)
Those who are in my blacklist cannot reply to my message
How much effort does it need to customize NodeBB to achieve the above features?
Off the top of my head, I think it's doable with the current hooks available. That said, it would be quite a big plugin. If you want to attempt building it I'll be happy to point you in the right direction if you get stuck.
Alternatively contact us at [email protected] and maybe we can build that for you