honest, when prices rose bitcoin, very difficult to produce 0.1 BTC per day, even with trading. many are trying to switch from trading, to gambling, but mostly it just makes them less BTC. the only way to produce 0.1 BTC every week is to have a long-term investment in altcoin, or try to trade with the more powerful.
earning 0.1 bitcoin per week is really such a big amount and i do not think that one can get it from signature campaign i think it can only be possible if you are trading alt coins.