There's another use of the qualifier "strictly" - to say that "if we interpret the rules strictly, then that is forbidden" (with the implication that strict interpretation may not be what's going to always happen).
It would likely be expressed slightly differently, with at least a comma in there, e.g. "Talking about politics on the forum is, strictly, forbidden" or "Political discussion on this forum, strictly, is forbidden."

I doubt that's what the OP is referring to, though! ;)