Nah, I created a Lemmy account at the start of June (at least the Jerboa installation date says that) and uninstalled boost a few days later. Only checked in on Reddit from time to time with libreddit, to have a look at the John Oliver party.
I deleted or mass-edited all my comments and sent an GDPR request. Only thing left after that is the account deletion.
Didn’t want to give them any traffic anymore, so I avoided everything about it.