Yeah, but it's also email. You could delete every email you've ever created and everyone who's ever saved their copy still has their copy.
Even if you were trying to be all sneaky about your email by having your own service set up somewhere, you're still making copies of everything you send by virtue of sending it. It's more vectors for the government/Evil Google/whoever to need to scan to get a picture of the data you're creating, but it's not impossible.
I know you're just making a point, but to the people who actually are all tinfoil hat, this whole conversation to shift to whether or not you should even use email as a method of communicating.
Even if you were trying to be all sneaky about your email by having your own service set up somewhere, you're still making copies of everything you send by virtue of sending it. It's more vectors for the government/Evil Google/whoever to need to scan to get a picture of the data you're creating, but it's not impossible.
I know you're just making a point, but to the people who actually are all tinfoil hat, this whole conversation to shift to whether or not you should even use email as a method of communicating.