Patsy,
It may take out a small % of traders that cannot maintain 25k in acct set up on margin, but I think the reason for the amendment is to protect the discount brokerages that have had problems due to margin accts that cannot be settled. If one does not have the money to cover, nor an item to sell to cover, the only thing for them to do is file bankruptcy. I think this new amendment will protect the brokers and those who take too big a risk without enough $$ to back it up.
It may effect liquidity for a while in the larger markets, but it may be a good thing for OTC bbs due to their relatively small PPS, and possibility for large gains.
Take care
Grumpy!!