some subs like offmychest ban anyone with a submission history to political subs like kotakuinaction as they perceive that someone with links to that subreddit

some subs like offmychest ban anyone with a submission history to political subs like kotakuinaction as they perceive that someone with links to that subreddit cannot possibly contribute in a constructive manner. whether they are right or not is something only they as mods can perceive. it is actually against reddit rules to auto ban users like that but it is part of the increasing number of rarely enforced rules on reddit