As the solo developer/cofounder of a two man business I have absolutely no time to worry about these things. Only a few days ago I've googled GDPR to get a facile understanding of what it is.

If at some point I create something that is large enough to matter, I can worry about it then and will have the resources to do so. Until then I'll continue working on software as if it does not exist. It's hard enough to build a profitable product that is valuable to people, don't need to think about any laws handicapping my creativity and design decisions.