you can post at this thread 
https://forum.lowyat.net/topic/983846
or
Games at Garage sales.
https://forum.lowyat.net/Games

will have better respond than here

Hey guys, just curious about something.

I bought a crystal casing along with my 3dsxl and I've kept it on my 3dsxl for quite a while now.

But I noticed after time, my casing looks dirty (as in like there's white stuff or like it was scratched or something). Then when I removed the casing, my 3ds also has that white stuff that looks like scratches when looked closely. Both sides of my 3ds has this stuff, and it's really clear there is a lot of it when looked up close. In fact, it looks as if I did not take care of my 3ds properly even though it had protective casing.

So I was thinking that I don't want to keep the casing on my 3dsxl to avoid anymore of these scratches stuff. What do you guys think?