I could be wrong here and this is the first I’ve heard of this but I suspect it’s the language / way he goes about communicating. On the surface at least it comes across as a little annoying / demanding, things like him having a website where he shames people that don’t cite him by name, I suspect the ‘legal’ claims being made aren’t that solid either. Don’t get me wrong it’s a neat tool - but it’s just one in a huge ecosystem of many people’s efforts.
> I suspect the ‘legal’ claims being made aren’t that solid either
Section 7 of the GPL specifically says that additional restrictive terms on GPL software (like “pay me $1000 or cite me”) can be ignored or removed. If the software’s author doesn’t want people to remove his additional terms he shouldn’t have used the GPL. Publicly shaming other open source contributions for doing something that the GPL explicitly and deliberately permits (removing additional restrictive terms) is extremely improper in my opinion.