Looks like it checks out. https://mstdn.games/@chris/110553477682106144

And you really don’t want to screw around with GDPR:

6. Non-compliance with an order by the supervisory authority as referred to in Article 58(2) shall, in accordance with paragraph 2 of this Article, be subject to administrative fines up to 20 000 000 EUR, or in the case of an undertaking, up to 4 % of the total worldwide annual turnover of the preceding financial year, whichever is higher.

https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:32016R0679#d1e6226-1-1

Now, that depends. Does the GPDR require a formal process to request to be deleted? They could claim that any activity that doesn’t come in through that formal process doesn’t count.

Sounds like all you EU Redditors that had your comments restored need to use that account deletion page.