It's better to be original. I have a principle that I will never cross: Tracing or using a base. I think it's better if you draw and learn how to draw step by step instead of just barging in, borrowing someone's art, slapping it with new colors, and call it your art? It's like using a coloring book. You color it differently compared to others, and can you still call it 'yours'? And coloring especially, I know a lot of people who does this; steal another people's unfinished OC lineart, slap it with different color and call it their OC. It's quite unfair. And by using a base, you could never express your true feelings on the artwork, the pose is already dictated by the base!
I know you don't mean to steal or anything, but it's better to be independent. If the artists that provide you with bases will be gone for long ( I know it wouldn't. But speaking metaphorically,) How would you make 'art'?
Unless the person who made the base includes their 'reference' image linked in the description, it can be hard to tell what's original and what's been traced. But, DA has a category for traced bases which means that DA does allow the use and submission of traced bases. I see no problem with using a base, traced or original, if you're doing it for fun and your gallery isn't all just edited base works.
Yes because they might be original but I wouldn't trust them because they might be traced so I don't used them, and here's the no I make my own bases using my own art work that a draw even though your using a hand drawn base doesn't mean it isn't art thief.
what im trying to say is use bases at your risk...