Quite good.

My thoughts.

Any way you could have a couple chosen follow packs in there? I'd have them checked off by default.

Also, instead of them downloading the key at the beginning, maybe it should be at the end. It may possibly scare some people off by seeing that stuff. If they make it to the end of the flow, they'll be more likely to actually download an app and check it out. Having the keys able to download and copy and paste on the last screen might be a good move.

The suggested post could say something like introduce yourself, say why you're here. Add a photo of you're comfortable. End with #introductions and you'll be seen by the network.

Those are my 2 sats! Thanks for linking primal at the end.