I had a link from Hubpages to my site, but it is no longer there. The Hubpage is still active. I've had this happen a few times. When I looked at my linkbacks I saw the Hubpage link a few days ago. Now it's gone.
Is your hubpages link still do-follow? You need a score or 75 or above for the link to be a do-follow link, so your user ranking may have dropped below that score... just a guess.
Where you get that backlink?, i think you must check that backlink it's removed or not. Or you can check your hubpage url on google, use site:yourhubpage (google put it on sandbox or not).
I was looking at my backlinks in Yahoo. My Hubpage rank did drop so maybe that's why. I used the Firefox tool to see if the link on the Hubpage was dofollow. Nope! I guess I need to write another hub. How else can you maintain a high score for Hubpages?
Both Yahoo and Google Webmaster are known for not showing all the links. Dont worry about that. My links from Hubpages also appear and disappear continuously.
If you have several hubs written, you can usually boost your score by simply visiting the forums and responding to a few posts, and maybe making a few comments on other people's hubs. That usually boosts you back into the 80's...
Weird! I was just doing this. I also made all my articles over 1000 words and added polls. It brought it up a few points. We will see how the forum and comments change my score. I'm below 75 right now, but I have the backlink when I look at Yahoo links.
If I published a hub and I had a score below 75. If I edit and improve it, does the score change too?