I seriously doubt IMs and email are being censored. You sound like someone who gets their information from grifters that complain about censorship despite having huge audiences captured by masses of lazy thinkers.
On a high karma Reddit account I was warned by an admin about banning for a specific story they wanted suppressed, and the post was deleted.
On Facebook I have been blocked from sending specific links from 3 different URLs in IMs, the last of which was because it had a contrary position about the Ukrainian war (the website Southfront which is Russian govt affiliated) when I was talking with a friend of mine that happens to have a Ukrainian wife. We were talking about stories in the news in the West vs East and what was the actual story.
On a high karma Reddit account I was warned by an admin about banning for a specific story they wanted suppressed, and the post was deleted.
On Facebook I have been blocked from sending specific links from 3 different URLs in IMs, the last of which was because it had a contrary position about the Ukrainian war (the website Southfront which is Russian govt affiliated) when I was talking with a friend of mine that happens to have a Ukrainian wife. We were talking about stories in the news in the West vs East and what was the actual story.