I always have had the: 'write a winning system on the footpath outside of Ranwick and it wont affect prices' philosophy [in the long run].

So I'd agree with Chrome [hi Chrome, I needed a holiday and I don't get into grudges, so lets nip this in the bud with no hard feeling I hope?]. System buyers never stop at one system, they buy another, then another at the first run of outs or when it goes completely pear shaped..

If you were putting successful tips on a forum similar results would happen. As soon as you hit a bad patch of outs the money following you would become very cautious [small bet or no bet for most]. No tipster avoids outs.
Long term success though would be a different story, but you could probably swing a deal with the forum owners and punters would have to pay to look.