Well, there you go. A happy accident (that he's a redditor person) yielded a response. And you both reached a greater understanding of the other one's POV.
Still doesn't mean it's gonna be a runner in the end, but perhaps it changes your willingness to try it on and see. GL however it is you decide to go from here on this potential polyship.
But a possible take home from this either way could be that next time you have questions about your potentials you could ask the potentials directly with more confidence.
Next date might not be a redittor and be able to intercept it.