My understanding is that the deletion of comments from that thread was an unintentional clerical error by a forum admin, so I would advise you to apply Hanlon’s Razor to that situation. If Bitwarden staff wanted to engage in some kind of censorship, there would have been more effective ways to remove all traces of the topic in question.
And as noted by @DenBesten above, the closure of that thread today was simply for housekeeping reasons, with an official position statement from Bitwarden as the final comment: