Earning bitcoins from signature campaign is missing in your list as most of the users who are part of this forum are earning bitcoins successfully from signature campaigns on weekly basis as it is the easiest and safest way to earn bitcoins as it requires no capital to invest so you don't have any fear of loosing your money.
Check #18, it says Forum Signature Campaign.
But yes, it is easy and safe, but does not bring in as much profit. People who are looking to bring in serious money using bitcoin will turn to services online, trading alt
coin, and possibly gambling. However most people who are part of the forum do use it because if you are going to be active in the server, why not get paid for it. It helps the forum out in the sense that it gives people
an incentive to post and answer questions. However, it also creates the need for spamming which really isn't good for the forum.
