This kind of thing really use to annoy me, it happens so often now im less bothered.
If you wanted to help your mate by telling him you spotted a really cheap car, you wouldn't shout it across a room packed full of other people looking to buy cars - at a car auction for example. You'd whisper it or send it via text so only he got the message.
My way of thinking is sellers have plenty of tools at their disposal to label the listing correctly, if they don't it's there loss and some other eagled eyed persons gain.
Hopefully this thread is a perfect example of how trying to help by publicly pointing out a mispelt listing can directly affect a forum member. Much better to pm possible interested people or as a last resort buy the item and offer to sell at the same price if you really want to help.
Scrimper, keep your eyes peeled, I'll pm if I spot anything that might be of interest
hopefully other forumites might also pm him so he ends up with the hegner he could have had