I am getting steady income from signature campaign and full time job and I am very much satisfied with what I am earning as if I am short of cash at the end of the month then I have bitcoins in the form of back up to take care of my expenses but generally I don't prefer to sell them and save them for future.
Good to see that, you are in good signature campaign and you manage to have it all like posting while having a regular job and earn from it. But also be ready of the time that sig.campaign did not last for so long.
Exactly there is no guarantee that signature campaign will take care of us for a lifetime as it can fad away with time so we cannot depend only on it for earning bitcoins and we should also have plan b to earn them as multiple ways of earning will give you higher amount of bitcoins.
Even with a stable job and a stable company, there is no guarantee that it will take care of us for a lifetime. There are lots known huge company that shutdown and leave their employees jobless, or some mass lay off during the change in ownership. What more with the signature campaign, so definitely we should be ready with the possible changes and end of the signature campaign we are participating. It is always best to have alternative or side jobs that can catch us whenever our main job does not deliver.