But why? The more traders involved in the game, the more liquid the asset will be. Cryptocurrencies are often illiquid. It is unpleasant to try to buy/sell an asset when the offers price is two to three times higher than the price in bids.
That's right - the more traders, the greater the volume and liquidity.
And the more traders, the greater the volume and liquidity - impossibility to "avoid enhanced speculation". Or something I don't understand?