When I joined thredup.com as the very first employee and the 2nd programmer, we decided to do a complete rewrite. It ended up being a great decision. I think t

When I joined thredup.com as the very first employee and the 2nd programmer, we decided to do a complete rewrite. It ended up being a great decision. I think that the real lesson to be learned is that you should beware of rules that start with "always" and "never".