I just received this notice from AMO30. I didn't post anything negative about women on that subreddit. They banned me simply because I post a lot on MGTOW:

You have been banned from participating in /r/AskMenOver30. You can still view and subscribe to /r/AskMenOver30, but you won't be able to post or comment. Note from the moderators: Hello LetsGoAllTheWhey askmenover30 is now filtering out posts from authors of posts to the MGTOW subreddits. The filter has detected that you have a posting history in mgtow. This filter is the result of many MGTOW posters on askmenover30 being hostile to women posting questions and it is the result of MGTOW posters trying to divert unrelated threads into rants against women. There are places on reddit for these kinds of conversations. As of this note, there are at least 5 MGTOW subreddits. AskMenOver30 is a place for supportive and friendly conversations between over 30 adults. Please do not take this personally. At this time the moderators are not considering altering the filters for special cases. Thank You. If you have a question regarding your ban, you can contact the moderator team for /r/AskMenOver30 by replying to this message. Reminder from the Reddit staff: If you use another account to circumvent this subreddit ban, that will be considered a violation of the Content Policy and can result in your account being suspended from the site as a whole.