Companies directly lobby the laws that affect the IRS on a year-to-year basis and have a lot more knowledge about it. It is hardly as vague as this was. I very much do respect the laws when I can, but I'm a US citizen, and my projects don't make enough money for me to ultimately care about the GDPR/EU. I just blocked them for .. ever, probably. You're really targeting people here, sorry I disagree?
I am not speaking of you specifically because this is about the behavior of companies and not personal projects.
There are companies, OP being one (a subsidiary of Pinterest) that have presence in the EU and are essentially playing chicken with the regulators. Blocking users but keeping their data is not compliance, nor are dialogs telling users you plan to carry on as normal. Companies do not do this with the IRS because they would be afraid of the consequences.