I have some older laptops that are 1080p, which was great at the time, but they are now obviously inferior at displaying text, etc. 4k can be overkill, 1440p (or 1600, or thereabouts) is usually fine (for me).
The list of accounts mentioned in the spam posts were harvested from the misskey.io timeline, so if you don’t have followers there you did not receive any.
As opposed to successful social media posts, which would never go viral by telling everyone how much everything sucks.