Question? Have you tried reading the help docs?
Want to talk about a certain style? Keep in mind, I'm the administrator of the site. The vast majority of styles are not written by me. If you want to talk to the author of a certain style, click the link to start a new discussion from the style's page.
Want some CSS help? I suggest you ask in the forum, where the whole userstyles.org community can help you.
Other than that, feel free to mail me at jason.barnabe@gmail.com or send me a private message on the forum.