Wow, the first half of the text is basically full of crap and claims which don't even remotely match reality, and now I'm reaching the technical section which can only get even more wrong.
To whoever the downvoter was: no, seriously. For instance in the first few paragraphs:
* emoji were invented by NTT DoCoMo, not Softbank
* even if that had been right Softbank's copyrighting of their emoji representations has no bearing on NTT and KDDI/au using completely different implementations (and I do mean completely, KDDI/au essentially use <img> tags)
* lack of cooperation is endemic to japanese markets (especially telecoms) and has nothing to do with "ganging up"
* if NTT and au/KDDI wanted to gang up on Softbank you'd think they'd share the same emoji
* you didn't have to run "adware apps" to unlock the emoji keyboard (there were numerous ways to do so from dedicated — and usually quickly nuked – apps to apps "easter eggs" to jailbreak to phone backup edit/restore)
* emoji were invented by NTT DoCoMo, not Softbank
* even if that had been right Softbank's copyrighting of their emoji representations has no bearing on NTT and KDDI/au using completely different implementations (and I do mean completely, KDDI/au essentially use <img> tags)
* lack of cooperation is endemic to japanese markets (especially telecoms) and has nothing to do with "ganging up"
* if NTT and au/KDDI wanted to gang up on Softbank you'd think they'd share the same emoji
* you didn't have to run "adware apps" to unlock the emoji keyboard (there were numerous ways to do so from dedicated — and usually quickly nuked – apps to apps "easter eggs" to jailbreak to phone backup edit/restore)
That's barely the first third.