It's an RSS reader. Getting a new one isn't going to change much of anything. It's a custom written reader that I made specifically with stories in mind anyway, so that's not really an option.
Up until I started having issues back in February, the reader always made itself known in the user agent (including a link to a page detailing what it was and the user agents and IP addresses it would use).
At this point, I can only assume that CloudFlare is just doing a straight IP block as no other client or script on my server is able to access Scribble Hub's RSS feeds.
I can't even fathom why an RSS feed would need to be protected in the first place. They should certainly be cached by CloudFlare, but preventing robots from accessing them doesn't make sense. RSS feeds are
supposed be consumed by robots.