I just started. Is there something I don't? Don't know whether you intended to sound so ominous. :-D
I tried it briefly last month, and thought the format was refreshing. However, I reverted to Inoreader as I find it more powerful. I would like to switch to a more minimal RSS reader that does not require a browser addon, however.
I was looking for an RSS reader for a specific blog, and my first reaction was to search on subreply. So I saw your post and I just started using it. However I never used RSS feed before and I don't really what I could use fraidycat for, except for this particular blog.