Does the number of rejected images in Adobe Stock affect sales and the account in general?

In short No, unless the rejection volumes stay high.

Relevant to your question is that selling more increases your overall visibility in the search algorithm, just like frequent additions does. Therefore I imagine (IDK) too many rejections will change the algorithm downward.

If your work is creating AI assets, keep in mind that a vast majority is getting rejected. 

And regardless of your level of experience in photography, I strongly recommend you follow people that are succeeding with it.

Happy Independence Day!

Probably not, though I assume the overall acceptance rate might factor into Adobe’s decision making when determining whether to make an account suspension permanent. The real issue with low acceptance rates is the amount of your time that is wasted preparing, uploading, titling and keywording assets - only to have them rejected

We’ve seen no indication that it does, but we always recommend maintaining and improving upon a 50% acceptance rate to be successful with Adobe Stock.