Contests on freelance exchanges. Isn't this a scam?

Question

Freelance

Hello!
I found a competition section on some freelance exchanges, where performers compete in front of the customer by posting their work.
But after all, the customer can simply throw them all away, and take the work for himself, especially if it concerns the idea of ​​a corporate identity, logo, website?
What do you think?

Answer 1

yes, this is so and for this everyone accepts the terms of the offer.

Answer 2

It happens and not kidalovo. But, it is better for you to initially consider such competitions as a platform for your own development and replenishment of your portfolio. They will pay - excellent, they will not pay - well, they improved the skill.