Well, maybe the 1000000 contained a bit of marketing but the point is that many of the people discussing this here probably didn’t know Lemmy existed 3 weeks ago and that number will only increase. There is nothing that can stop the fediverse from eventually overtaking everything else as its not a single entity. Also, growth may not be exclusive either, its not required for reddit to fail so that fedi can succeed. They can coexist.
Its a surprise to me that a reddit post or any kind of random text blurb can be used as an admission of anything. What if the guy simply says I made all that up for fun? There is no requirement for text written on the internet to be under oath. Edit: fixed spelling oauth -> oath ;)