Again? No matter how much unnecessary FUD you try to sow, it doesn’t change the fact that this is a simple concept: if you feel comfortable fixing the problem properly, go for it, or if you don’t, wait.
Good lord. There are plenty of people who don’t want to do it or don’t feel comfortable doing it, and those people won’t do it. They can let someone else they trust do it for them or try another approach or leave it alone.
Your entire post was pointless. “Someone else out there might screw it up, so nobody do it.”