De Platforming websites is it a new thing? A political tool to be used ?

Can this be used against a website deemed by tptb a tool to get rid of a websites they don,t like or otherwise??

Free speech and all Gab was totally free with no content screening for anyone to say anything
FB and twitter can ban you remove posts and control the narrative

Does glp have potential for de platforming?? i mean based a a single post that could be deemed offensive/contributing in a real world event???