if i was the boss of the forum, ranging from taking plagiarism seriously with automatic ban,
You may still have to handle with plagiarism reports on a case-by-case basis.
Plagiarism is prohibited, but what if current forum contributors forget that they have violated this rule in the past without realizing it, is the permanent ban or will you consider other things based on your interpretation?
and implementing 2factor authentication and face or fingerprint recognition for logging in, and most importantly implementing the Bitcoin price feature on the top left side corner of the forum "close to the avatar", where users could easily sees the current price of Bitcoin, since this forum is all about Bitcoin, so implementing the Bitcoin live price feature will be the best idea so far
2FA is good for security, but I think face detection is bad for security because many users really care about their privacy. Remember there are users using this forum via TOR from day one, they are privacy-concerned people, but if you ask them to apply face detection on login then that means you will kick them out from forum.
For the latter I agree, because this is a bitcoin forum so displaying bitcoin prices in real time is good as a new feature.