Isn't this a known trajectory for all such [solutions]: ease of use, multi-platform, originally advertised privacy and security concern, critical mass gain ==>

Isn't this a known trajectory for all such [solutions]: ease of use, multi-platform, originally advertised privacy and security concern, critical mass gain ==> sell / be acquired (latter requiring a little extra $$$ effort from the acquirer part) to FB/Google/Amazon/etc.?