In OSM Wiki the “name” tag is not defined. Different countries use different approaches. This discussion shows that there are different opinions for Thailand. There’s no conclusion yet.
In this situation one user changed the name tagging of another user despite contributiing to and knowing from this discussion that the tagging by the other was explained and on purpose. This can’t be regarded as friendly act.
What’s going on: ignorance, conceitedness, demotivation, starting an edit war?