Take this post for example: https://www.reddit.com/r/northernireland/comments/1ll6ocg/see_it_say_it_censored_kneecap_is_not_the_story/
Speaking from experience, people in Ireland are overwhelmingly pro-palestine.
There is this user in the comments: https://www.reddit.com/user/EntireCourage308/
Its a nearly year-old account, it started posting about a month ago, it made some innoculous posts, then pivoted to posting far-right misinformation in the r/northernireland subreddit.
There’s loads of other accounts just like it.
thats called warming up the account, and its designed to avoid the reddit ban evasion filters partially. it looks more legitimate if your “posting in a certain way”, then the sudden switch to a propaganda path/spam is always the objective for these accounts. reddit has gotten too sensitive and are catching people that do this if they dont have any anti-detection methods employed.