I did a little comparison: reach and reaction on Twitter and Mastodon.

I picked a subject typical of my feed and reworded it to be more native to Mastodon. Same link, issue, people, tone.

With 309 K followers on Twitter it got 81 shares and 179 likes

With 8.5 K followers on Mastodon: 123 shares and 195 likes.

Here are the two posts:

https://twitter.com/jayrosen_nyu/status/1591147769229557761 [305K followers, 81 shares, 179 likes]

https://mastodon.social/@jayrosen_nyu/109326807884220104 [8.5K followers, 123 RT, 195 likes]

Jay Rosen on Twitter

“"He asked: Do you really think we haven’t done enough coverage of the threats to democracy? "I responded emphatically that yes, I certainly did think that." @froomkin's dialogue with @blakehounshell of the New York Times is not to be missed. https://t.co/D1qnw0MkZv”

Twitter
@jayrosen_nyu What about impressions on Twitter? Many read without engaging.

@leahmcelrath The one thing I have noticed is not as many posters at Mastadon leap to tell you that you are wrong or misrepresenting something.

Although I did have one "actually" reply to this.

@jayrosen_nyu Ah, yes. I meant impressions *on* Twitter (how many views), not *of* Twitter, lol. (But I agree the impulsive reflexive arguments are fewer here so far.)
@leahmcelrath Sorry. Misread. Impressions are 22K on Twitter. Not sure how to get that data on Mastodon.
@jayrosen_nyu @leahmcelrath you can’t. There’s no mechanism in the protocol to track user view behavior. A custom server could at best track how many instances a toot was federated to, bit even that won’t tell you how many people saw it.