yes, but what has that to do with filing a visa application?
Immigration needs the visa application data to check if you still comply at the initial requirements when you ask for an extension, so they will have access.
I have no idea about Thailand, but in a lot of countries foreign affairs even issues visas on behalf of immigration.
You have a good point in mentioning the "duties" of a foreigner.
It is quite stupid I have to tell every day where I am. When I are with my Thai girlfriend in Netherlands, she just can go where she wants, without any reportig, freely through the whole Schengen area.
And I can understand you choose to pay tax where it is the best for you, but that does not mean it is fair.
On the other hand, a lot of Thai also don't pay taxes, that is one of the reasons for taxing money to get into the country.
And for normal products foreigners do not pay more than Thai, Thai also pay VAT, so why shouldn't foreigners pay taxes like Thai pay taxes on their income?
And it is normal that tourists also pay taxes, a lot of countries have even a special tax for tourists.
When you actually live in Thailand and still are tax resident in Australia that is your choice. I don't say if it is a good or bad choice, but it is up to you.
And I know from your postings you are an extremely selfish person, but you could try to behave and not speaking disparagingly about other people.