Can I enter Thailand if I have had multiple visa exemption entries this year?

no issues

Totally depended on immigration officers understanding

the issue if any will be the imm officer in front of you.

You will be fine , I have done 5 entries so far on Visa exemption, including the last one on Saturday - not a single question

I just entered for the 3rd time in 6 months, got stamped and waved on through with no problems

Who told you? An immigration officer? Or some fellow traveller who doesn’t have a clue?

My sister arrived on Saturday, it was her 4th visa exemption entry for the year. She was allowed to enter without any problems or questions.

As long you haven't stayed in Thailand 150 days or more and haven't extended your visa exemption your classed as a tourist so you should be fine

You should be fine there is no limit to the amount of visa exemption entries by air just make sure you have all your documents ready for inspection .you need a return ticket out of Thailand inside 60 day

Atleast baht in cash and your paid accommodation for your trip

There's no such thing as a TDAC entry. The TDAC is an entry card, that replaces the old TM6 paper. It has absolutely nothing to do with your being allowed to enter or not or how many days you will be allowed to enter for. It's just an entry card.

You've been in Thailand for less than 2 months this year, you shouldn't have any issues entering, especially if you have proof of your ticket out of Thailand within 60 days.