ah, good luck with that!!!!!!!! i know comments go missing - comments i've made on people's vids, and comments other folk have made on mine, have all disappeared within hours, and if you look at really old vids, from years and years ago, you might find hardly any comments left, and replies cast loose and drifting far from the original comments, if they are there at all. long story short - the comments system on youtube is pretty hopeless, really! but it's a heck of a lot of work for a host to bring all the comments they make, over to the thread to replicate them here, most people including myself don't bother doing that, so i think we have to be philosophical about the youtube comments problem. the best way of making sure the host has seen a vid is to check it's on the playlist oh wait youtube has made that harder now with the whole "is your vid for kids" thing, 'cos if it is, or if they THINK it is, they won't them go on a playlist, or receive comments....................... apart from all that, youtube is marvellous, obviously
mebbe