Zetikla: technically you are kinda not allowed to "split" a gog license either but whatever
And if drm free comes down to this for you then may I say, you are in for all the wrong reason
TL;DR license agreements are technically similar both steam and gog, you own a user license, not an ownership one, with restrictions of how you may use said software
just because GoG doesnt slaps you on the wrist for it doesnt mean they are okay with it.
I'm not splitting the license. It is mine. I bought it, I own that License.
I know I don't own the code, not more than I own the rights to Harry Potter if I buy a book.
All I'm doing, and its exactly the same for every business in the world, is allowing a private individual (child or wife) use a currently inactive license I own.
If commercial software operated on the same principles as Steam enforces, there would be no commercial software. It would be untenable for companies to rebuy software each time a staff member is replaced or changes roles.
The biggest issue with Licensing, and its one I find hard to understand why it has not yet been fixed, is there are no steadfast laws to govern its usage and the rights of software licensing. Sure there are copyright laws, but they don't cover licensing.
The only things are legal precedents, which currently say you own your licenses and companies can not control usage post purchase.
Its also worth noting GoG licenses allow you to install on any computer you control, since I control my childrens computers I've not breached any licensing.
Lastly under UK laws a EULA is not a contract, closer to a sales notice.
One last thing, DRM allows companies to enforce whatever clauses they see fit without the need to worry about pesky things like laws or legal due process.Without DRM companies need the Law to protect their rights, With DRM consumers need to take multimillion dollar companies to court to protect their rights.