Publishing Custom Indicators Or Trading Systems

A while ago I made up a couple of my own indicators. I'll write them up here soon (but I've procrastinated because it means making some charts as well :-)

I guess the theory is, that the more people that use a particular indicator, the more likely it is to work. In a self-fulfilling kind-of-way.

Similarly with trading systems. Surely it makes more sense to let everyone know about your fantastic trading system - if there are more people that are buying when you are buying, wouldn't that be of benefit?

Maybe I'm missing something. Comments section please, if you have an opinion.

Of course, what with most of us living in Capitalistic societies, good trading systems are allowed to have a price tag attached. Don't say "well if it's so good, why do they need to sell it?". I don't understand how this way of thinking applies only to traders (see previous rant). Just buy it, and if it used as intended and makes more money than you paid for it, then it was a good investment.