Ask HN: Svbtle Nudges?

I have a dormant blog on Svbtle which I unpublished all the posts years ago. Today I received this email from them:

> Hey <NAME>,

>

> Someone has nudged you to post on Svbtle. Write something!

>

> https://svbtle.com

>

> If you need anything at all, just respond to this email.

>

> — Svbtle

Who nudged me? Svbtle automated reminders? I don't even see a nudge button on Svbtle blogs generally. It's not like Svbtle has "follow/subscribe" functionality or a list of content they host. The only thing that remotely comes close is the Kudos button which is not available on my blog because there are no posts. I don't even have the domain redirecting correctly (if you were to visit <my-blog>.svbtle.com it would try to redirect to the FQDN I setup previous which isn't pointed at Svbtle currently). Is anyone familiar with this feature or is it just marketing?

What a weird thing to do for a site that seems opposed to that type of thing at least functionally.