Haha ok I'll give it a crack since you've offered carrot cake
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@largeraj @ithappens Just from my experience trying to get it to work (some of this may not be accurate, some of the tech stuff goes over my head), the new site uses html5 which is slightly different than the old html, and normal copy+pasting from certain sites or programs often ends up leaving out a lot of the formatting (as you have experienced obviously).
So I have another step when I write off-line which seems to be the most consistent way to fix it, and that is copying and pasting to this page/site first
https://html5-editor.net/ (paste in the right box), which effectively changes it into something that the new HC editor understands. From that page, you can tinker with it a bit like a normal editor if it doesn't look quite right, then copy from the left box for most accurate results and finally paste here, and make sure you keep formatting when asked. You can also play around with some posts in the test forum on HC if you want to see if it works properly for you. Hope that helps a little.