Joined when I was in my early 20s when the site and clientele were very different. What I expected? Absolutely nothing.
The forums were the main chatting area back then, as there were very little chat room functions and one to one message capabilities (I did love the old internet sometimes lol).
What I expect now? Again, absolutely nothing. Nobody owes me anything. You don't even owe me the courtesy of reading a reply in the forum. That is part of the beauty of Internet communication. What you put out here stays forever, and can reach so many different people that it is always best to ensure you put your best out there for others to read. They may like it and reach out to you. You may build up a reputation of being funny, kind, intelligent, so when you go to a social people are already eager to engage with you.
You can't show off a giant swinging cock on a forum post, but you can tantalise their mind instead. An often very reliable approach.