Here's my spammy comment 😋
Just kidding. I think minnows could use this as a strategy to gain new followers. And it probably works best if you have some amount of SP. Could of course also be leased.
I don't think I saw anyone doing this. But on first sight it looks like a very appropriate way to build a following.
Yeh, I think the vote train of IINC helped to trigger the actual follows.