While certainly amusing at times, there are some forums where the content actually matters.
I would think that the tech forum certainly qualifies.
Even if you had added an actual recommendation after the wonderful image of duct tape, that would have helped. Nothing wrong with starting with a joke and then trying to help the person who asked the question. But all too often it seems that your "special" brand of humour is all we get.
In the end, a person is asking a question (and they even posted in the correct forum!). And your response really does nothing to help them in any way shape or forum and you knew that before posting.