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OP I appreciate the reasoning.
But I’d advise against it,
and would recommend users to delete their Facebook account asap.
Why? 4-5 years ago I already noticed the “illusion of free speech” on Facebook.
The platform is a data farm,
but I’m a data privacy advocate,
so I regularly posted data privacy articles/tools.
Which went against the best interest of Facebook, so they simply held back that content from nearly everyone’s feed, resulting in it getting nearly zero attention.
But if I posted a dumb meme,
it would get a lot of attention.
I’ve asked around to friends back in the day who where scrolling online if they saw my data privacy posts, none did.
So staying on the platform to advertise things that go against Facebooks best interest, will likely not yield good results.
However deleting your account,
is a great conversation starter that can easily be directed into WOM (Word of Mouth) marketing, to teach your friends and family about Fediverse tools.
And by continuing to use it,
it will stay that way.
Just don’t, plenty of other 2nd hand sites out there, with plenty of products available.