Is it possible that the emails are real, non-spammers and the spammers are abusing your registration form to send a short message entered in the name field to t

Is it possible that the emails are real, non-spammers and the spammers are abusing your registration form to send a short message entered in the name field to those emails like this person described? https://news.ycombinator.com/item?id=36446532 https://news.ycombinator.com/item?id=36446532