Literally, bitcoin is money. Therefore you can get bitcoins in the same way you earn money. Any work or job is useful to earn some dollars that you can change for bitcoins later.
you are certainly correct. but more on that, if we only get into the forum, browse it, especially in the service section, there are so many jobs and tasks out there who will pay us. we just have to be hardworking in looking for any available job that we can do.
You could able to explore the details in the bitcointalk about the all possible options to earn bitcointalk depend on the forum only for earning. You can also start own path in bitcoin to make own site for bitcoin payment gateway or bitcoin related projects.