"Also, like all SMS based tools, if you reply with the word "STOP" you'll never hear from them again." Or, it will result in your number being tagged as "confi

"Also, like all SMS based tools, if you reply with the word "STOP" you'll never hear from them again." Or, it will result in your number being tagged as "confirmed as valid # as of (date)", making your number even more valuable to spammers. The recipient can't be sure which.