That's why I don't like the name "Type 1.5" which fortunately seems to have fallen in use compared to LADA, because it seems to imply LADA is "halfway between Type 1 and Type 2". It's not; it's Type 1, just with slower onset. Per John Walsh in Using Insulin, "Insulin Resistance is minimal or non-existent in LADA's" (page 52) as it is in newly diagnosed Type 1's. I believe he states common times for destruction of beta cells are between a few months and 6 years with "insulin required in 1/2 of those within four years".In my case I needed insulin within 15 months of diagnosis. Though the original edition of Using Insulin is now 10 years old now and current best practice says that starting LADA/Type 1's on insulin right away will slow beta cell destruction.
I actually made my own diagnosis while living in another country but ALL LADA/Type 1's are diagnosed as Type 1's. "LADA" is not an official diagnosis. I probably don't respect insurance companies any more than you do but Insurance and Medicare distinctions are important to us for things like number of test strips covered as well as approval of insulin pumps. I also want my Type 1 Diagnosis on the records in case I am ever hospitalized and can't speak for myself so they don't see a baby boomer and kill me by thinking I need Metformin or Actos not insulin.
Even though I disagree with the emphasis on name change I have to say it would have strengthened your argument if the information on LADA/Type 1 was more prominent and more accurate (like stating the true number of Type 1 which is 25% not 10% and pointing out the misdiagnosis of slow onset Adult Type 1's because their onset does not come on as rapidly.)
Yes, we can certainly agree to disagree but conversations like this one where you share your expertise in childhood diagnosis and I mine in LADA/Type 1 are, imho, a lot more valuable both for our community and the medical field than coming up with new terms.