Reply to whom? {incontrovertible evidence of Bob's derpyness :) } Also, if I 'reply' to each text msg, won't they just change the source name/code? These msgs come from endless phone numbers and names. Sometimes I figure out how to delete all of the msgs with one choice, but often I have to work thru them one by one. {What a klutz! Imagine me on a smart phone!}
You reply to the text that was sent to you. You might have to do it to several, but they cannot continue to send you texts if you reply with STOP.