My experience hiring for jobs on those site is most of those responses or bidders clearly have not read the requiements. You can distinguish yourself by giving

My experience hiring for jobs on those site is most of those responses or bidders clearly have not read the requiements. You can distinguish yourself by giving clear evidence in your bid you understand the requirements, and importantly, note areas where clarification is needed. Also, a lot of bidders respond with, why not use framework or service X? Don't do that.