@atomicpoet It’s 80% audience (don’t want to start over with 0 followers) and 20% normalcy bias
Also, it’s promotion from their own media organizations.
Even orgs like @ProPublica and @eff, which have a strong presence here, do not link to their Mastodon accounts from their websites.
In corporate speak, big ships take a lot of time to turn. Give them some time. It will happen