Comment by tal8d

When you blow up the transaction limit you physically centralize the verification process. This is why you'd see miners gamble with sitting on a solved block and secretly beginning the next search, with a few seconds of head start, before announcing to the network, or skipping the inclusion of any transactions: because fractions of a second make a big difference. Bigger blocks propagate more slowly, and magnify the advantage of employing those kinds of undesirable behaviors. This is why HFT boxes end up as physically close to Wall Street as possible. This is also why bcash got so much early support from Chinese miners.