First of all, I want to tell you that you're actually doing better than most people. Selling digital goods like the stuffs you buy in CS:Go and DotA2 are good because I heard that the earnings from that is actually good that some people made their own website dedicated to selling that. You are probably making a lot more than the people here who are doing signature campaigns. You are better off doing that same thing over and over and maybe just keep on expanding it or invest some of your money in mining if the electricity bill in your place isn't ridiculous and you've got good Internet connection.

Most people HERE are receiving bitcoins through signature campaign because that's really a thing in this forum and everyone's doing it because who doesn't want a little reward for discussing things in here. Outside this place, people are all about trading. Some are just focusing in USD>BTC but some are actually buying new altcoins and wait for them to sky rocket. Some would even buy coins that have almost zero value and hope that they get some value in the future.