Do the blogs have RSS here?

I see that the New Comics list is available for RSS feed, but are the blogs able to use that option somehow so we can subscribe to each other's blogs?

Try being their friend or enemy (they'll have to accept your friend/enemy request). It will at least show their latest blogs, but you'll have to go to their page for older blogs.

I was trying to get it into an RSS reader.

No, not the last time I checked. I put up a thread about it but no reply so try PMing the admins of this site.

I believe Cascader handles the feeds.