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I admit that if I am free on a Friday afternoon (and, being retired, I usually am) I pick up the Listener as soon as it appears and get cracking. I post to this site as part of the package, putting my thoughts down before they escape the colander of my brain, and if I happen to be first to post, so be it. As for the jibe about apparent completion, I do come clean if I later realise that I had jumped the gun -- you only have to look back one puzzle to find an example.
For me the point of this site is to express appreciation of the puzzles, and occasionally to pick up references to past puzzles with related themes or other quirks (as somebody pointed out, people have been posting here about Listener puzzles for much longer than me -- in fact, probably for longer than I have been doing them). It's also interesting to see, for example, whether a particular quadrant of the grid that held me up had the same effect on others.