Sure. I think about creating single wiki pages for each type e.g. supermarkets, fuel stations, banks and so on, which are combined in a wiki group “brand names in Thailand” (or something like this). On this pages there could be a table listing with pictures of logos, “default name” (which we have to find out first), name in Englisch, name in Thai and more things like this. And maybe in future there could also be a tagging suggestion for each brand. I do not like to complicate everything with operator tags, but i would accept this of course for the final goal of “a mostly complete tagging”.
Of course this all needs much time, so please do not expect too much in the near future. Sometimes we all have to work to earn money too
I would say that there is not the “only one nativeThai”. There are different thai people, different groups and different oppinions. Some would like to see everything in Thai, some would like a mix of both and maybe some may even like everything in English.
If we make a poll on this question, how much percent would you accept for “the only one oppinion for thai natives”? 51%? 70% Simple Majority? Absolut majority? And of course there will be more people from the “higher social classes” that will participate in the poll.
In the page “Map features” name is described as “the common default name”. IMHO this is the name the company uses at the location of the POI and not “what people would like to see”. “What people like to see” is buisness of the map-renderer. And this could be much more complicated than just “use tag name=" or "use tag name:en=”. It could also be a combination of everything, which needs special algorithms to calculate it. This is my personal interpretation of course, so it would be interesting to hear other opinions.
For street names we all agree to use the “official name” from the “official authorities”. So why not do the same for brand names? Why not use the name that the brand is registered in Thailand?