I'd say the same that it's hard to answer the questions since each forum member have their own situation especially in financial situation where a certain person have more than 1 btc or even exactly 1 btc and even some may have fraction of btc. In other words, it depends on the forum member on how much btc they have either it's in fraction or not. You can also say that other forum members got btc from services, signature only without spending their own money.