So you're saying that the Touch and the Glo are the same... apart from the differences.
They are not the same device, and they obviously do not share identical code. In any case, whoever started the Touch thread may not want to merge - it hasn't been done so far. To put Glo requests into the Touch thread now would hijack that thread.
Also, personally, if I'm looking for something about the Glo, I don't want to wade through 73 pages of Touch requests (quite a bit of which may be out of date now) before I get to anything relevant - and I doubt anyone from Kobo would either.
You will also see that almost all of my points ARE related to the light.