The MongoDB community attended the AWS re:Invent 2018 conference where they interacted with Lauren Schaefer, the newest developer advocate for MongoDB. People complimented MongoDB's performance and praised it as a preferred choice over other databases like Amazon DynamoDB. They asked various questions about MongoDB Atlas, including its definition, pricing model, and differences from DynamoDB. The most frequently asked question was whether the MongoDB socks given out at the conference were different sizes, with the answer being that they were all one size but seemed to stretch to fit a variety of sizes. Overall, people were excited about MongoDB Atlas and wanted to learn more about it.