Has anyone ever seen a bug on a strawberry?
Absolutely not! There is no bitul likatchila. I don't think any reputable LOR would recommend this.
take one & hit it on a sheet of paper. I actually eat strawberries as there is a way to make them bug free
If you never had to eat crow then you lived one boring life.
That's my point. If you hit it on paper you'll see pretty quickly if it's infested or not. Then you can go from there with your peeler or soap or vinegar or whatever. I've seen many clean strawberries.
I'll just repeat what others say, not my own words. But R' Wei is considered the giant and mumche in tolaim.
This
Is nireh l'eynayim?
What is this, an esrog?!
Many rabbis recommend this. There are various svoros as to when and why there is no problem of mavtlim isur lichatchila.