It's kind of sad that the copyright (and now copyleft) trolling is so successful, but the actual enforcement of various companies and projects that very much do

It's kind of sad that the copyright (and now copyleft) trolling is so successful, but the actual enforcement of various companies and projects that very much do violate FOSS licenses is vastly ignored. There are huge companies out there redistributing modified versions of GPL software that fail to ever publish their source code even when contacted for request. Sometimes when they actually do publish the code it's missing significant portions or build tooling to actually make it work - which the GPL is very specific that it MUST be included as part of the source.