Relevant parts (reply to add if I left anything out):
> Trolls hoping to test the boundaries of Parler’s commitment to free speech and get a rise out of its users began, often vulgarly, impersonating prominent Trump supporters and conservative publications.
> Parler responded by banning the impersonating accounts, including some inoffensive parodies.
(The linked article seems to have some bias towards supporting Parler, so they may be giving Parler the benefit of doubt and framing it as a reasonable measure.
BTW, kudos to parent comment for linking to a source like this - because of the article's bias towards Parler, there's no doubt to a random reader like me that these bans happened, as opposed to if it was reported by a politically opposed source. )
> A seeming[1] blanket ban of Antifa supporters from the platform, announced by founder John Matze, might be similarly understood as an antiharassment measure.
(Here the linked image seems to be implying that planned brigading was going on, to prompt the ban.)
