Is selling your photos on stock photo sites worth it?

A while ago, I created adobe stock account and uploaded some of my favorite photographs for sale think it would be good side income. So far I have sold 10 prints and have less than $4 in my account.  

I have yet to try other stock sites but from my experience it is not worth selling the work for $0.18 where people can make upto 500k copies ( non commercial) of your work. Since then, i have pulled my work off of adobe stocks and have decided to sell prints only.

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Unlike Appstore, instead of providing 70% royalty to the creators, these sites are taking a huge cut just for selling it (and marketing it as a steal) 

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I'm not too impressed.