that makes sense to me. The comment of Stefan Andreas, who was fined after his too short stamp had expired, confused me, but I saw that you just commented it. Thanks for clarification!
I'm surprised, cause I always thought the stamp is binding. So if they stamp too many days and I overstay, it's my fault? But if they stamp me 30 instead of 60 days, I do overstay after 30 days already and this is also my fault? Sounds a bit arbitrary...
(just asking for curiosity, I always check my stamp)
Ministry of foreign affairs in Germany says your documents have to be valid 6 months if you enter Thailand. Even on a visa exempt. Many countries have this rule, I'd double check it.