Nuh. You already have a visa, the embassy already asked you those questions. So those questions are totally unnecessary. Imagine having a Non-B work visa, and you decided to visit your family from your home country with re entry permit. And when you get back to TH, they will still ask you those kinds of questions. You will feel uncomfortable, right? So, their job is to verify your records, if they have legit documents (e.g. passport, visa), or if you have criminal records or alert. I hope we understand the difference between verifying questions, suspecting questions, or they just have nothing to do questions.
Anonymous participant He is basically power tripping you, so typical. They already know and they have a record of you that you're entering TH legally. Also, you don't have criminal record or alert from your country.