And again you assume.
First you assume about forcing. Why do we have "readmore" tags? maybe so we do not force people to read through / load large swath of code/speech.
Second you assume that one can only offer unrequested help out of arrogance.
Either you believe everyone else has this kind of attitude toward helping others and then your world view must be quite bleak or you are just projecting your own behavior onto others, assuming they think like you.

Even if your understanding is not perfect and your time limited, a short explanation and maybe a link to more reliable sources is better than nothing.

TL;DR People could benefit more from your skills if you gave even the shortest explanation.