If you make a shit tonne of alt accounts and then sign up for a lot of signature campaigns and then spam everyday of your life. Very easy.
Thats just a bad plan, because you would have to wait for like a year for your account be be even worth something, and then you would get banned on all your accounts
for spamming. You may want to change your thinking.
Bitcoin was not intended as something that everyone would just milk dry, but rather use it and support the project.
unfortunately many of the new bitcoiners seem to think that way. not only by signature campaigns, but also with faucets, ponzi schemes, gambling, etc.
what they don't understand is that bitcoin is just like money. if you want to get it you'll have to work for it. try to get a shortcut and you'll get burned sooner or later.
that said, earning a living with
only bitcoin and having a good life would be difficult unless you already have a business or a mining farm.