Rooftop camping

[Kozzae-4668 (Kozzae)]

If there is flying available, then no. In classic though, with no flying, it could be.

I can't find the page for the rules specific to WoW

By safespotting, I assume you mean using terrain to circumvent guards? As in, they can’t get to you? That is generally considered exploitation and can be reported via the right click report: Cheating option.