So we're going to have a second great firewall now?
am i "operating" in zimbabwe, or moldova, or fiji? no.
if twitter stops selling ads to EU entities, closes any offices, and hosts just outside the EU borders it does not have to comply. if for no other reason then the eu loses its power to enforce.
Maybe they'll move to Sealand.
Probably everybody operating a website is in violation of a law somehwere around the globe.
If you want to sell to European customers you will find that (depending on your size and business) you will have to comply with some laws in order to continue in this Market.
The bigger your business the more rules and at a certain size laws will be created to regulate you in particular. This is what Twitter and friends face.