You can unhide it by clicking on it. So don't think it's been ninja'd. Personally while I would be a bit annoyed to lose weapons I've frankly put more hours into levelling (let alone obtaining) than I have several other AAA games, I would like a definitive statement from Bungie stating What weapons / armour will carry forward Therefore explicitly which won't Will there be an option to obtain year 2 equivalents of raid gear When will the next gear reset be I don't really care what the answer is, but I would like to know what the deal is.

I really don't know, nothing in my post violates the forum rules and given Cozmo responded to my post it is even more weird that the ninjas took it down