I think you refer to https://ninjastic.space/user/The-One-Above-All, although it doesn't seem he used to post on technical board. Anyway, if you need to look for certain user, you might want to use https://bpip.org/ search feature or list of banned username on http://loyce.club/.
This is what his posts look like w/o ChatGPT... Ay yayay. Sad to say it but a decent % of users shouldn't be posting on this forum at all. I just can't believe how incredibly low the bar is for getting accepted into a sig campaign here (granted the aforementioned offender was not yet in a campaign). Campaign managers should really set higher standards so we don't have to read the barrage of nonsense that comes from their campaigners, and so those that aren't interested in writing anything remotely interesting don't even bother trying.
Or enforce this again with higher standard.
Signature Campaigns are a great way to introduce your business and advertise your services to the bitcoin ecosystem but this cannot be abused by you paying people to make poor contributions en masse. As a signature campaign operator you will ultimately be held responsible for the quality of posts of users bearing your signature advertisement and you will need to monitor your users closely or it will be quickly abused. If you are running a campaign and it becomes blatantly obvious to Staff that you are doing little to nothing to stop spam on your campaign you will be issued a PM warning by a Global Moderator that you need to make immediate improvements to curb low-quality posts. You will have 7 days to remove low-quality posters and respond to the message detailing what you are going to do to make changes to your campaign to reduce the amount of spam. If improvements are not noticeable within 21 days of that and Staff do not believe you are doing enough to prevent low quality posts your signatures will be blacklisted from the forum by an Admin and you will no longer be permitted to advertise here in such a way. The Staff and Admins do not want to have to do this but it's a last resort in an attempt to clean up the forum as signature campaigns cannot continue to operate here in such a lazy way as it is not fair that others have to go through pages of drivel to find anything of substance nor should Staff be left to clean up the mess you are paying people to make.
Source: https://bitcointalksearch.org/topic/m.16904309