Wouldn't say it happens to all of us at all, pretty sure it's easier not to strip a thread, certainly easier not to strip a thread let alone 3 of them. But as Matt said, daft topic, you're asking us whether you should pay someone 5 pounds to helicoil your mount in a frame you like a lot or chuck it and buy a new one...... Don't think you need anyone to tell you what to do there.