Of course the point of likening it to a virus is to compare it the involuntary nature of a viral infection, even though must people have a voluntary role to play in accepting ideas. So if you take something into your body with full consent, knowing it will reproduce itself, I guess that’s more mind sex? That sounds a lot less harmful.
I tried to create a blog on substack once, I got literally zero views across a few posts. I feel like the only blogs there that get recommended are by people who are already semi-famous, suggesting the usual problem of recommendation algorithms killing entry for new creators. It also strongly encourages a paid model, you also usually have to subscribe to comment on others’ posts which makes it hard to get your blog out there. I’d say it’s more a publishing platform for people who are already well known than for ordinary people.