Cellard was a great member of this forum, I'm not certain if he was promoting any of the project. Another user bill gator is too banned till 2021, he was promoting Chipmixer. These are only signature ban.
The question is, how come dudes with an outstanding reputation like them did plagiarism?
I am not certain which kind of plagiarism it was in the case of cellard. If plagiarism was not for monetary gaining (Imagine no signature campaign here), I guess no much soaring would be here, a least not like as of now. this outstanding reputed dude probably tried to help someone with the information from the internet, forget or didn't care much to add a reference link. I reckon dude would never say it's my opinion or my original works. It can be seen as a silly mistake.