Well the good thing about welding and fabrication is that there is always more than one way to skin a cat. If you prefer that method and are having good luck with it and want to continue, I say have at it. You just won't catch me doing it!
In reality, most people would be shocked at what even average welds will hold together and as long as you have put good thought into design and chassis layout, and you aren't continually stressing those joints to their limit.
I guess when I fabricate something (and give advice on something), I use and recommend methods I know have worked for me as well as others and also have a solid foundation based on my engineering and welding education.
