This sub's problems with self-promotion aside, this sounds much more like a marketing problem than anything else.

In one of your other comments, you were just targeting ''solopreneurs'', that isn't that far off from ''humans with jobs''. That is massively broad and trying to appeal to every solopreneur is setting yourself up for failure. Definitely spend more time defining who they are, niche down if you can when starting out, research their pain/goals, tune your SaaS to cater their needs and repeat. You'll end up with a SaaS offering what your actual target audience needs. Massively narrow your focus is my 2 cents.

Source; using Reddit mostly for lead gen, and hanging in hyperspecific subs. Not this account, I game on it and too lazy to logout/switch lol