Perhaps you're right, and all of them have the "greater good" intentions, but it's ridiculous how their "regular reminders" popped up in the same 24h interval
It's getting harder and harder to tell because bot activity has gotten so good, but Matthew Green has been around a while and is a genuine old school crypto dude. There is a group of people who just believes that crypto and privacy are good things and want to promote them.
The reason it gets harder is because you can spin up a handful of "expert" accounts shilling for this or that privacy VPN or bitcoin scam etc. So it's hard to just pull up a list of statements and know whether it has any weight. In this case, Matthew Green has a lot of weight because I've followed him for a while and I know what he's about.