@Paul5938 You're right to be cautious. Because it was instant booked you can cancel without penalty, just cite that you're uncomfortable with the reservation, and that the guest is uncommunicative.
Here are some general tips to consider for keeping bad guests from getting in the door. Big red flags are: whether old or new profile...no reviews/local/last minute/weekend booking. When you have instant book on, make it a requirement that in order to book, guests must provide profile photo, recommendations from other hosts, govt ID...basically ALL the verifications you can ( just know that govt ID can be bogus...happened to me with a guest!) You can also set it so that anyone who doesn't fulfill those can still send a 'request' to book, if you choose. Once you get a booking, search the guest online with name and phone number. Your results can often better inform, whether good or bad, but know that if nothing comes up, that's not necessarily a good thing.
Specify up front in your listing that you live very nearby/onsite. If you don't have already, install security camera at front door to see instantly who/how many arrive. Disclose it prominently in the listing details. Have a camera you can monitor remotely in real time. You may want to specify you will meet guests at check in for a quick welcome and will require to check their ID at that time. All of that will go a long way to putting off the guests who just want your place to party. Also, keep your price as high as you can, and set big increases for certain dates, like NYE. You may even want to just block it off. The cost can be bigger than the payout.