Bruh. This forum being an archive is just lazy. Why not fix this forum and make it a safe place instead. Now people are moving somewhere else without solving anything regarding this issue. This issue can happen everywhere unless the website is better protected against issues like this.
If you really want to aim pushing Rock Raiders United forward, try this instead of freezing this forum for no real reason:
Make a plan to protect everyone.
Add features to this website to protect the users. For example:
Reputation based system allowing users knowing the forum rules to post.
Reliable moderators and admins to keep the forum safe. (Try getting this forum better under control based on plans)
Use something like an onboarding feature to guide users through the forum rules and how the forum works.
Reward users for positive contributions on the forum. Give them a reason to behave.
Get active/caring mods and admins to make this forum healthy again.
I came up with these fixes pretty much in minutes. Instead of being silent. How about you fix this issue in the first place. It is not impossible to improve safety to this forum and its users. The lack of change this forum got shows the staff is not interested in solving the real issue here. Letting this forum die out instead of keeping the forum up-to-date and fresh is not the solution. It is just lazy.