@gohan6425 umm no, gt and dbz are different in the sense you have a different writer
but they take place in the same universe just an alternate timeline.
as for code geass
the ova's are movies
so technically it's still a part of the same series given it has the same title as the series.
I can get why you're mad,
I'd be pissed if someone deleted a post i took several hours to write, however i believe they did that because there isn't an option to merge threads and because they most likely thought it was a duplicate post.