I can't say for certain that this is caused by my ADHD or not, but I have a "sensitivity" to dark patterns. That is to say, dark patterns bug me more than they probably should.
Hiding the pricing until after signup is a dark pattern. It's a clear case of the company optimizing for their interests over mine and they are therefore unworthy of my trust (or so my brain tells me). After all, what other user-hostile design decisions are they going to make?
What ends up happening is that my brain puts its guard up, and keeps it up. It's constantly on the lookout for more subtle tricks and corner cutting.
Furthermore, I'm offended that they think I'm that stupid (but that's probably the developer in me and not my ADHD).
The landing page piqued my interest but then let me down. Hard. Not because $40 a month (as reported by another user here) is too much, but because I find dark patterns to be morally repugnant.
[0] https://edgefoundation.org/the-fairness-imperative-adhd-and-...
P.S. I struggled to write this as its first thing in the morning and I haven't even had coffee.