[philco]

I've been suffering from the same thing. The posts that make the front page stay on for a while, then get modded off without notice.

[robryan]

Most likely the voting ring, be very careful about submitting then telling everyone you know to go upvote it. Especially if they are sitting in the same office with the same IP.

[dmor]

Do you have any examples of submissions where it is happening?

[bluehat]

Happened to me this morning with the Coca-Cola thing. Was around #6, got bombed to the mid-80's