My apologies if this reminder/tip already exists somewhere or would have been better placed in a different area. This last week I've noticed a TON of models showing up on my Quick Add section of my Snapchat. Typically I see 1-2 people show up on there every few weeks but I've had at least 15-20 models show up on there just in the last two days. I know they're models because the names end with 'mfc' lol. Obviously it wouldn't do anyone any good to try to add a model in this fashion if she rejects the unknown request, but I still feel like it's a good idea to keep it disabled. Even if you reject the requests those people can still see your Snapchat username. Below is a quick tutorial on how to disable it.
https://www.addictivetips.com/ios/turn-off-quick-add-on-snapchat/
https://www.addictivetips.com/ios/turn-off-quick-add-on-snapchat/