Re: Where are the Brexit fans?
What's vindictive about it? Why did anyone register in .eu in the first place? Presumably, because they were starting an EU-wide activity. If they plan to continue that activity after Brexit, they will need an office in the EU anyway, and they can switch the registration to there.
Nothing to see here, please move along.
Compared to the multitude of real economic, social and personal disasters that Brexit will cause, this is trivial.