As much as I would personally love to share, there are of course other employees working at Stripe and other acquisitions that Stripe will make in the future, which complicates things. What I will do is try to be as transparent as I possibly can about what's going on behind-the-scenes, traffic numbers, product and growth strategy, etc. I've always thought it was cool that I got to talk about growing Indie Hackers itself at the same time that I've been talking to other entrepreneurs.
The logical assumption would be that they gave IH a very sweet deal, much sweeter than they'd generally offer an acquisition target with similar financials. So if they release the details, future acquisition targets will expect similarly sweet deals, which Stripe has no interest in seeing.