It can be profitable for all people. There are upfront costs – you’ll have to pay to rent these miners, and mining pools can also take a cut of your profits – but it can be worthwhile. Your profit will depend on the power of the miners used by the pools – newer miners will boast better specs than older models and will likely generate higher returns – and the state of the market. For instance, if you choose to hold onto your bitcoin instead of selling it for regular money, like the U.S. dollar, you’ll remain exposed to the price of bitcoin. Different coins pose different currency risks. On Antpool, for instance, bitcoin pays out $0.2900 per terahash, while ethereum pays out $0.3044. These small differences can compound if you rent miners with greater hash power.
The limit is still low though (about $50/day) but I'm trying to get it increased.
