I think verbal abuse is a subjective x on the number line of criticism and said feedback. Some people can handle getting called shit, and some people think it's the end of the world. To answer your question, no I don't think when putting something out in the world you're consenting to verbal abuse. I think you're consenting to unmitigated feedback (if it's an online forum, perhaps), and sometimes that feedback will come in the form of verbal abuse - whether that's someone's right or not to give said feedback, I can't say.
I think you'd agree that feedback does not equal verbal abuse. So, to go back to the original question, do you feel that by asking for feedback you're consenting to be verbally abused, or do you feel that's not the case?