Why Is It?

I always kinda enjoy threads that start out "My car won't run" or some such, then open the thread and they've replaced several things with no progress.....and NO diagnosis. When did that become a thing? Do people just like spending unnecessary money? Maybe they would adopt me? I mean seriously, WHY won't people learn to do some simple diagnostics? I guess it's because they want to fix it in a hurry, but in the end, they spend twice the time and money to finally find the trouble and every now and then you see people actually GIVE UP and sell the thing. When did people start not having any sense?