@bob123 raises some excellent points.

I analyzed the proposition by @CryptoSparks at great length on his previous thread here: https://bitcointalk.org/index.php?topic=5148727.msg51286489#msg51286489

while CryptoSparks' attitude can use a lot of improvement, he also makes some intelligent comments, so I really would like to give him the benefit of the doubt, so here is what I propose:

@CryptoSparks you need to find a way for people to track the performance of your bot, for free, for let's say 2-3 weeks, where no one has to give you their API keys; they'll just get the signals on their e-mail / telegram etc. and decide whether to trade or not of their own accord.

I guarantee you, if your bot is indeed consistently profitable at the benchmark defeating levels you suggest, many people would volunteer themselves, after observing the results, to invest much greater amounts than 500-1000 USD you are looking for...

Finally, the argument that more people making the exact same trades leading to higher profits for all is just completely false, you have to change that line of thinking If indeed your bot were a huge success and you had millions of dollars of capital resting on the same order, most of it wouldn't even get filled on the desired price, and diming bots would emerge just copying the apparent whale on the market but 1-2 ticks better, ( so an identical profit profile cannot be replicated for a high number of customers; that's why most of this style algorithms use the clients' orders to improve the probability & alpha of the trades in their proprietary accounts )...

That's just basic game theory and introductory market dynamics, so you really need to come up with better arguments and a 100% secure proposal for the customer, including the trial period & any subscription / managed account service.