What are the chances of being denied entry to Chiang Mai on a visa exemption if I have a lengthy stay history?

The discussion revolves around the chances of entering Chiang Mai on a visa exemption given the user's past stay history. Comments suggest that having a Dutch passport and previously staying in Thailand for extended periods might raise concerns at immigration. Recommendations include preparing necessary documentation such as proof of funds, onward travel, and accommodation to facilitate entry. Some users suggest that purchasing a fast track service could help expedite the process, while others advise obtaining a proper visa if there's significant worry about entry denial.