Well, there’s actually been research into it.

Since that shit is dry as hell, and there’s available articles about it, psychologytoday.com/…/why-it-feels-so-good-confes…

This one gives a nice overview.

So, I’d say it’s pretty realistic to say that “confession” has mental health benefits.

That being said, true anonymity is going to be vital if you’re going to try to build something online. Not just for the people that might want to use it, but for you too. You really don’t want the legal issues if someone were to confess on your service and it became part of trial evidence. You may be thinking it’s not a big deal, that it’ll never happen, but it does happen already with social media.

The less you’ll be able to provide, the less hassle you’ll have. So keep that in mind. Reddit, Facebook, VPNs, they all deal with legal requests regularly, but they have legal departments to handle those to keep a barrier between the people running things and the consequences of users’ actions/words.

Me? No fucking way I’d even confess to jaywalking online, period. And I have never done that (that’s actually true, I’ve never been in a situation where it was useful. Small towns and infrequent visits to cities ftw?). I’d also advise anyone else to never do so.

Also, if you’re a priest/minister and your religion has a confessional seal, you have pretty robust legal protection about not having to break it, in many places. Therapists also have a degree of confidentiality that they’re legally required to maintain. Your online service has neither. So you’ll also have responsibilities above and beyond what therapists or ministers have. Well, you may, since local laws vary, and I’ve never heard of a lot of legal precedent around mandatory reporting for online services. But even if you aren’t currently required to report a range of things, not doing so might open you up to lawsuits and/or eager prosecutors looking to set a precedent.

I guess what it comes down to is: yeah, it could help people. But better you than me