There is no problem renewing a DL up to 1 year after expiry without taking a test.
Mine expired in March, I will get round to renewing it in the next couple of months.
No problem in renewing; however, you will have a problem if you need a payout from the insurance, as Ralf001 pointed out.
In my Caberg Duke (modular), the noise most certainly comes from wind sneaking through at the neck. When "air tight", there is very little noise. However, I ride a scooter and max speed is 100 km/h so maybe that is why it is low noise.
Sounds like you have visited one of the places offering the TDAC for a fee. Instead, visit the official website where it is free:
https://tdac.immigration.go.th/
Be aware that you cannot fill out the official form until three days before your arrival in Thailand.
Maybe you are looking the wrong places?
https://www.lotuss.com/en/product/smuckers-seedless-blackberry-jam-340g-1455362
https://www.tops.co.th/en/hero-strawberry-orange-marmalade-and-blackcherry-jam-849g-pack-3-8850939928744
Why does it matter what they are doing? If you want to monetize a Youtube channel, you can do it with a DTV if you can meet the requirements, that is, money in the bank, a registered company, and a portfolio of some kind.