[1] - https://remoteleaf.com
OP, if you want people to be able to contact you privately and you have an email address or Twitter handle they can use, add it to the "about" section of your profile. The "email" field in an HN profile is not visible to others.
I can't find harm in any way I look at it.
He offered the help he could. If the OP wants to take it, he can. He plugged his company while doing it, and others might benefit from getting to know about it.
Where's the problem? He probably did it in a different way than you would, but still. What's wrong with that?
Sure, you can see it as a (very shameless) plug, but the parent has provided a resource -- possibly a very good one -- that could help OP find a job. Even if the parent is almost certainly a bit biased about Remote Leaf, giving some random person on the internet free access to their service in an attempt to help them find a job and figure out how not to be homeless is a really nice gesture.
I know if I ran (or worked for) a company that helped people find a job, and was confronted with someone homeless with skills that match my company's target audience, I'd be thrilled at the opportunity to throw some help their way.
[0] "Please respond to the strongest plausible interpretation of what someone says, not a weaker one that's easier to criticize. Assume good faith."