Maybe you can answer my question too. I've been looking and it doesn't seem like there's a search feature for any of the tags. Is there a way to be sure that you're not reposting content?
If you put in a URL that has already been linked to it won't let you post.
does that mean that if someone posts an interesting article here and has no followers and almost nobody reads it, and then 3 years in the future when there are very different people on the site who would be interested, it is impossible for anyone to post it or read it?
You could search for it, find it, and comment on it or share it. To my knowledge that would bring it back into the feeds once again. But I am not sure. You'd have to get a response from MK, b_b, thenewgreen, or one of the other Hubski peeps.