I'm aware that, as a general rule, specific franchises aren't banned because it's possible to create an appropriate project about any franchise (see the Rejected Suggestions List).

However, this is not necessarily a universal rule. For instance, today I stumbled upon an obscure declaration by the ST that Hazbin Hotel (a web series known for being hyper-violent and generally inappropriate) is banned. However, you wouldn't know it from the site. PFPs of the series abound, as well as RP studios. I sense that this rule is not very well-known.

Thus, I think that it would be wise to have a list of series that are banned or have restrictions on their content (such as Five Nights at Freddy's) to avoid the proliferation of such content. It could save the ST a lot of moderation time.

Thoughts?

This isn't a very good idea. Say you have a list of a bunch of bad words open to the public, and some little kid stumbles across it. The little kid doesn't know what these words mean, so then they search them up, and then it would be Scratch's fault for having this list. The same would happen with a list of banned franchises, people would find this list and search them up and find all sorts of inappropiate things.

there aren’t many banned franchises though, even FNAF is allowed under specific circumstances

This is rejected: https://scratch.mit.edu/discuss/post/7854885/

Za-Chary wrote:

This is rejected: https://scratch.mit.edu/discuss/post/7854885/

Looks like we already covered this scenario.