Agreed. This is one of the things I really don’t like about Bubbles (and similar RSS aggregators); they should be opt-in* only. I’d be very irritated if I wrote a throwaway post with a throwaway title that was never intended to reach a mass audience, only to find that it has been reposted on a popular aggregator where everyone in the comments is having a good whinge about the title of a post that was never even supposed to reach their eyes.
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* Though I suppose hardcore RSS proponents would argue that by sheer dint of providing a syndicated feed in the first place, you’re already tacitly “opting in” to having your blog reposted on a third-party site… It’s one of the many reasons why I do not offer an RSS feed for my blog. I don’t care at all if a small number of people want to read my posts on their private RSS reader, but I’d really rather not have my blog featured on a big third-party aggregator without my knowledge or consent.