Sad but true. And they are taking some good stuff with them.
Squeeze box back in the day was the biggest competitor to Sonos. All open source. Logitech bought them, then just shut it down for no apparent reason. Same thing happened with Harmony. Best user programmable remote on the market, Logitech buys them, then shuts them down for no apparent reason.
I wish someone would scrape together a few million bucks or whatever Logitech would want to sell both brands, buy them, and resurrect them.
DMs are exactly what you expect, like private email. Every service has some form of this.
Reddit chat is real time, designed for shorter messages and real-time communication.
The other difference is that everybody uses Reddit DMs and nobody uses Reddit chat. I have my chat turned off as do most others that I talk to.
So this is yet again another example of Reddit management not reading the room and forcing the use of a system people generally don't want.