Err, but it did ruin the gameplay. I do remember the era of UMD shooting PSPs and well, games fucked up. ;/
I never had any trouble with this, leastways. Then again, it both wasn't as big a problem / easy to pop out as the DS (I found)
I don't know why this is. I am rough as shit with my DS and I have never had a cartridge pop out. I have no idea what you are doing.
Well, this one guy was mentioning how I shouldn't use my penis as a stylus. I have no idea what he was talking about though. The stylus isn't big enough.