Help 'bugreports' folder taking up tons of storage space


I've got a 32GB SD card in my phone. Just today noticing that I barely have any space left, yet I only have about 12gb of music/video/photo.

Looking around, I found that a folder "bugreports" (in the root folder) is taking up a whooping 18.05gb of space! It's filled with .txt files that range anywhere in size from Zero KB to 120mb. Most around around the 50-80mb range.

Is it ok to delete these files?

And how can I prevent them from accumulating like this again?