Posts are disappearing from threads

Posts of code_fodder in this thread disappeared before noticed with this post http://qt-project.org/forums/viewthread/28923/P30/#130277
Prior to this he posted twice. Notification emails show June 21, 9:30 and 9:56 and post #130277 has time stamp of 11:47 in notification. The time should be UTC+2.
Around 10:30 I had placed an answer with a question. This post is missing as well.

Certainly there is the possibility that someone has deleted these posts, but it does not make sense, since no offending information was posted as far as I know.

Seen disappearing posts for other threads as well lately. Unfortunately, no further information available for those posts.