Hi and welcome @joemanmn !
You are right - the community forum is totally separate and not linked to your account here, as such. That means that a member could choose to not give personal info/ listing info on forum, and also that non-members could be part of the forum.
You could introduce yourself in the Intro.-section of the listing. It is however my advice to use the Intro-section mainly to give the reader a compelling reason to read on and not scroll further to the next listing (but keep reading yours) - tell sitters why they should come to your area and what there is to see and do. But ofc. - also a few words about you, as many appreciate the connection between pet- lovers and because it gives a good impression for a friendly exchange.
You can learn a lot from reading on forum (just keep in mind that people come here to get help with issues, we are not quite good enough on coming here to tell about the wonderful matches we’ve made 
)
If you would like input on your listing you can add the link to your listing in your forum profile (otherwise we can’t see it).
How to add a listing or profile link to your FORUM profile
Can’t help with what a host can see on their profile, I’m sure a fellow host will come to the rescue.
Best of luck - hope you enjoy it!