Why so many problems with graphical editors?

Question

Griffon, KomPoZer, LibreOffice, and other graphical editors I run into on Linux tend to overuse text qualifiers and create messy code. Every time I resize a font, the code may turn out something like:

<span style="font-size: 10"><span style="font-size: 12">my text</span></span>

Why is that? Can these issues be overcome?

Answer 1

Nevermind, Bluefish Editor works best. Case closed.

Answer 2

Did you mean to declare 2 span elements? Use Notepad++ and I'm suggesting this because I've had no problems with it. Your text will be 12px by the way.

Answer 3

Yes, the two spans ARE the issues. What I mean is, it will automatically generate two <span> tags!