I think you are the "daft one". First of all, frostwolf is MOP, which is newer expansion and obviously prone to more bugs. I don't play there, so I wouldn't know, but makes sense it might have more issues being the newer realm and being in development whereas Icecrown doesn't get any major changes since it's been around for quite awhile and working pretty well. I have my char from Icecrown for over 3 years, with items in bank, some bag, that have never disappeared. Look at this guys post and history, he clearly makes mistakes often and saying that a gm told him to "fk off and stop whining", I highly doubt that is actually what happened. I've never lost items on the AH either, and can only imagine it coulda happened if you left stuff on there when the squish happened and the AH reset, but even then, I don't recall that being an issue.
People like to come on forums and whine. You are daft for believing them. Looks like no one else here is posting they lost items