How do spritefonts work for unicode text?
My main issue is if we only support the typical 256-character ASCII set, we're effectively cutting out lots of non-european languages like Russian, Chinese, Japanese, etc. So far AFAIK all the official plugins and features in the whole of Construct 2 work equally well for all users due to the unicode support throughout. I would hesitate to add a conspicuously ASCII-only feature, especially if it would take lots of work to implement. I prefer web fonts because they don't have this problem and can work with the full range of unicode characters (providing the font supports it, but at least it's possible).
What do Japanese games do with regards to spritefonts? I have no idea, but I would guess they just pre-render text to images, since spritefonts don't work for that language.