There's no mention of years in the latest guidelines so there is no reset. The guidelines are all about people spending to long inside Thailand on visa exempt entries which are only for short term tourism. Normal tourists won't be affected, others should get an appropriate visa.
JoyfulRaspberry975 whether there is a suitable visa or not depends on your situation married, parent of a Thai kid, over 50 etc. And there is always the Elite or Thai Privilege visa which requires nothing more than money.
one thing to note is that you must be in the location you claim to be when you apply for an evisa. Most consulates require proof of that, and you can't use it from inside Thailand.
JoyfulRaspberry975 different immigration officers will have different interpretations. I would say that "technically" you are living in Thailand and working in Australia, which isn't what the visa exempt stamp is designed for.
They may want to see 3 full months of statements but as long as the 3rd month has an ending balance of 500k baht that should be OK. Be aware though that with soft power they can also ask you to show how you will be able to support yourself for the 5 years duration of the visa
it's not how I read the new guidelines. My take is that extensions are no longer permitted if the person has a history of border run style behaviour. Applied equally to land and air (a border run is a border run after all). Having said that we're going to have to wait and see how it pans out
there are no new rules, only guidelines issued to immigration officers. There is no limit on visa exempt entries, but each immigration officer has discretion.
nobody can say whether you will have an issue or not, it will be up to the immigration officer. If you're worried getting a visa could help but there is no guarantee
Make sure you have both a residence certificate from immigration and a mobile with a Thai SIM registered against your passport before you go to the bank