The presence of ethically questionable companies worth millions or even billions of euros like Google, Red Hat, Oracle, Mozilla, Element, Canonical and many many more was always there at FOSDEM.
If you have a problem with Jack Dorsey's new Block company you should ask yourself the question, why is this any different?
To me this seems just like another drop in the bucket.
Remember that FOSDEM is not a free software convention, it has "open source" in the name. The organizers do not care about software freedom. It has always been like this.
@SuperDicq
> Personally I would love to have an actual free software conference similar to LibrePlanet in Europe.
would indeed be great, yes.