These backlinks draw in indexing bots to the page, this is very important for ranking, therefore it matters to optimize a resource without issues that hinder promotion.
Posting poses no risk for your domain!
I avoid filling in contact forms, (contact forms can damage the site since users file complaints from site owners).
Submission takes place in approved sources.
Inbound links are added to the most recent constantly maintained catalog. Several portals in the database.
