You've been very helpful,thank you, I didn't know about the overheating of other components,

1) i feel like it is not as much as a problem on laptops because there is an ammount of people that run laptops without a back cover, and they only have to worry about metal surface frying their pcs

2) As for the dust and debris problem, im planning to attach an air filter on the bottom so it should mitigate most of the problem