No it's not the end of the world, it's just a pet peeve of mine. Questions like yours really ought to be asked in the correct section and once the answer is given and you go about completing the work, which you documented and took pictures off, you should go about writing up a nice "
HOW-TO" for other people to follow and post that in the how to section. Yes, it's just a forum. Maybe you're new to forums so I was pointing out how to properly use the How-to section. The how to section is meant for users to find how to do something that has already been done, everyother section for asking how to do something that hasn't yet been done or hasn't been covered in the how to section.
For instance, On my motorcycle forum there is section to ask about all things mechanical. A lot of people asked questions about how to replace the clutch plates. I replaced the clutch in my bike and took pictures along the way. When I was done I took to the time to write a very through "HOW TO" on replacing the clutch. If you'd like to see that it's right here:
http://www.xjrider.com/viewtopic.php?f=69&t=5850
General questions should be asked in the other areas. Once the solution is found, that info can and should be posted in the how to section.
But to answer your question about the foot well lighting, for one, it's been covered before. Here:
http://www.mazdas247.com/forum/showthread.php?123832542-Mazda-Welcome-Illumination-Kit
And Here:
http://www.mazdas247.com/forum/showthread.php?123830899-How-to-wire-LED-Door-Sills
The short of it is there is no wire that is conviently under the dash or coming out of the interior fuse box that allows you tap into it to install foot well illumination. You are welcome to poke around there and hopefully find a solution to what you're looking for. I'd like to install foot well lights as well but running wires to the rear of the car seems to be too much work at the moment for me to invest any time doing it. On my Protege5 it was as simple as splicing into two wires up under the dash but that doesn't seem to be the case on the CX-5. Good luck