I don't like the idea of adding new restrictions to newbies besides the ones the forum already has. If we want new people to come here, they shouldn't be treated like potential fraudsters and made to jump through hoops to be able to use the forum like the rest of us.

Advertising a site on the forum isn't against the rules if done right. But that advertisement might perhaps break other rules and be the reason why such posts could be deleted. If it's spam, off-topic, or advertisement in threads created by other users, you can report it as such and the mods will probably delete it.

I am not sure what the moderators do in situations where, for example, you gather proof of 10 brand-new accounts promoting and sharing the same links with some bullshit story as reason why they do it. Would those be deleted or are the reports left unhandled?