Honestly, for now, I'm glad you chose itch.io to upload your game. This is a discovery platform as far as I can tell. Not the greatest one but not bad either. All you need to do is upload your content and you'll appear at the top of the "Most Recent" games list. Which players can discover just by searching for new adult games while here and selecting the "Most Recent" tab or by playing with the filters a bit. They don't even have to know you exist when you're on there to discover you.
I've came across some extremely random new games that I never even knew existed on my visits here just because of that. That is a good thing. There is nothing wrong with a bit of random. There is no feeling quite like discovering something new and enjoyable by chance. Sites like this are too far and few in between nowadays with all the privacy concerns. Its ruining the internet! Have privacy concerns/ issues. It's simple. Don't put all your personal information on the web. This is a great site for finding new games and developers.
The only way I can think of that it could be better is if the visitors didn't have to play with the filters so damn much to find adult games and new ones at that. But at least it is possible for now or else I wouldn't even be here. Good thing for bookmarks for quick access ^_^ Besides, got to make the site kid friendly somehow...