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It seems that you have some good points, but please fix the formatting. I can't read it at all on my mobile. You can copy and paste from another editor if you need a more comfortable way to view it.

Your readers preferences should trump your own; I don't presume you write comments for yourself to read.

For the rest of us, the comment ends up entirely cut off by the overflow: scroll CSS attribute.

I would suggest the use of an extension that allows you to edit text in any editor you like, where you can freely use any font you like, such as It's All Text! for Firefox. That would solve this problem on any site you use.