are they irrelevant though? i totally agree with you as far as my spheres of interest go, but outside of that “normies” still use both heavily.
just try to find travel or anything but the one big anime community on lemmy.
and many companies, politicians and journalists still only use twitter
the advantage of the fediverse is that individual instances should fall below the sizes the DSA identifies as constituting a “platform”. and any that don’t arguably break with the spirit of federation anyway…
now obviously they can change those rules but it’s a little too late for that, now that it has been passed.