For the point I'm trying to make, the particulars of the strategy don't matter. What matters is the fact that the larger and/or more numerous your orders are, the more likely you are to move the price, and any such price movements will necessarily be disadvantageous to you.

I.e., if you're buying, the larger your buy order is (well, assuming a visible buy order) the more likely it is that liquidity-adding sellers will increase the price of their sell orders. Also makes it less likely that liquidity-taking sellers will want to trade against your large buy order, because (like everyone else) they'll tend to interpret your large buy order as a sign that the price is likely to increase, so not as good a time to sell.

You could of course use hidden orders to avoid some of those disadvantages, but hidden orders have their own set of tradeoffs too.