LLF, I did a bit of looking around, and I *think* I see the "invisible posts" you are referring to.  (linked below)

I think what is happening is that while you are typing your reply, other people are doing the same.  When you post your reply several others come in before yours. So, when you refresh the page the original reply you are referring to has pushed up the page (or possibly to the previous page) in relation to yours.  So it looks like they've disappeared. 

Here's the permalink to the replies I found when searching for the ones that went missing.  Are these them?

The initial reply by LowonIQ about leather: http://talk.gagajoyjoy.com/dis...5#125270002437885955

Deej's reply on the debate: http://talk.gagajoyjoy.com/dis...3#125410739932187073

Are these the ones you are looking for?

Spot on, Do you know I've been through that thread so many times looking for them! 

*blushes furiously*