It should be easier for the expert to find the sources.

The sources from which I learned the information would be difficult for me to locate, even if I remembered all of them.

It's trivially easy for you to find sources that confirm my claim, though. It's the difference between sources and the sources.

I would rather see you become a better contributor, more capable of explaining your ideas without gratuitously offending everyone,

Given the choice between accurately relaying the truth, and refraining from offending, I prefer to accurately relay the truth. Sometimes offending is required.