I would like to see automated RSS Feeds added to Skadate.
Members would be able to subscribe to a RSS feed for new members, latest forums, blogs, latest females, latest males, latest videos etc.

The mini profile feed would show a link to users profile with a:
thumbnail profile image:
username:
age:
Location:
Brief Description:

Yes, that would be great to add on the the activity scheduler as well.
Here are two sample feeds to give you an idea of what I'm talking about. http://youtube.com/rss/global/recently_added.rss
http://adultfriendfinder.com/p/blog_rss.cgi?pid=

Adden, to answer your questions:

1) Here are some example ways that you could setup a RSS page.

Create a new page that will list each RSS that members can subscribe to such as.
new members, latest forums, blogs, latest females, latest males, latest videos, latest photos

For forums and blogs you can create RSS for each Category like these site.
http://www.youtube.com/rssls
http://www.travellerspoint.com/forum_feeds.cfm  (This one has a good layout of where you can put the feed link on the page)
http://forum.newsgator.com// .

The Forums and Blogs feed should have:
Link to each category, when you click on the category the RSS will open with a listing of every topic or the last 20 topics in that category.
Topic Name (links to forum topic)
Username of the member who started the forum (link to profile)
Date that the topic was posted
Summary: summary of topic posted
Example: http://www.travellerspoint.com/feeds/forum/all.xml

2) Feeds are always optional for members, it's not mandatory that they subscribe, it's just an added way to keep members up to date with your site info, and provides an added method for site owners to market their website, by submitting those feeds to various feed search engines.

3) You should probably add an option on the navigation for "rss feeds", or have a small rss feed logo on the site (maybe on the top of the page) so that members can click it and get a list of all the feeds that they can subscribe to.

Overall, I would just browse around other sites on the internet to see what works best. There are a lot of free feed generators online, but that could be time consuming for site admins to keep updating, so integrating automated RSS with Skadate would make the software even more powerful. It's already great