Ohh, kinda like Seth Godin's blog! If you share any of his blog posts, there's a rotation of pics that come up in Twitter's preview. Did I get it right?
Thanks - do you mean increasing the price or blocking signup with credit card? The first I can do. :) The second it's not worth my time to handle the complaints, especially if I post it on HN to ask for feedback.
For Seth Godin's blog, it seems he's periodically rotating the image tag at his blog level. All the post get the same image for a certain amount of time.
With MultiPreview you set the images you want. But the time rotation could be a nice feature, I'll add it to the list! Thanks again!
P.S: Feedback for feedback, if you're down? https://bychgroup.com/price-unlock/