Between Nov 20 and Dec 14, someone with the IP address 34.66.115.47 has submitted 16 requests to join my email newsletter on my website form with nonsense email accounts like mphtnarrwqrs@gmail.com and qrzqoiakkubp@gmail.com. In one instance they used a real email address, so I have their name and know the company they work for (which is in my industry and we actually have mutual colleagues). What could this person possibly be doing with all these weird form submissions? I have a very basic, static website, do no A/B testing, and haven't made any updates to it in months. What do you think?