Comment 104 for bug 250211

@Adam Porter: Exactly. I thought I had addressed this in my response, but yours is even clearer.

@mac_v: "Blinking is the default behavior in several other laptops [in Windows also" - I have used many laptops (I work in IT) and have *never* seen one who's default wireless light behaviour is to flash the user visible light all the time. Even on Windows.

#176090 appears initially to be about the light being off (as opposed to doing something), but later turns into 'it used to flash, now it is steady'.
My experience over a number of versions has been the light went from always-on to always-off to flashing-always to fixed-with-the-help-of-the-script-here.
Therefore the correct fix for everyone would be to keep this configurable but default it to how it was i.e. always-on or the more useful always-on-when-connected-flash-when-connecting-off-when-disconnected.

I'm not sure what you mean about "all the different laptops manufactured need to be matched". Either change the default in the kernel source with a Ubuntu-specific patch, or add the scripted commands via the laptop-mode package (etc. etc.).
The 'cat' is harmless if the files don't exist, but it's trivial to check for the files existence first, for instance.