So how are they going to force people to buy steem?

They can't force volume, but they can maintain price. If people don't see the point of selling below 0.05, then the price just won't get to the 0.01 that might be attractive to many buyers. It will stagnate at 0.05 with few sellers and few buyers. i.e. low volume. That's actually what we've been seeing for a long time, but with a more or less steady declining trend. There is, however, no guarantee the declining trend will continue or that the price would ever get low enough for you or others like you want to make large purchases.

This is why many coins, even almost completely worthless ones, almost never go all the way to zero. They get stuck with existing holders unwilling to sell, buyers unwilling to buy, and volume cratering.