Shawn Hannety – I respectfully disagree with you. If you cannot sit in a room where a rov is giving a shiur, without yawning, sleeping, or reading another sefer – leave the room. To do any of those things in his presence is extraordinarily chutzpahdig. Don’t blame a rov for boring you. Perhaps you should simply not stay for his lecture. I have listened to rabbonim speak who were not only boring, but not my cup of tea for other reasons. I would NEVER talk or read a sefer while they were speaking. My parents brought me up to have better manners than that.
As to being judgmental – we are ALL judgmental every single day. We have to be. Discerning, might be a better word, as judgmental seems to have a negative connotation. The main idea is not to be so sure we are the ONLY ones who have a clue, that we discount anyone else’s view. The only view that I as a frum Yid would discount, is one which tells me it’s ok to be mechallel Shabbos, eat treif, not go to the mikveh, not have my sons gemalehd, and so on. Otherwise, all observance that conforms to basic Judaism and its guidelines, is good. I may choose to observe something more strictly than you or less strictly, but if I am meeting the minimum standards, then you should refrain from comment, even if you want to be more machmir on yourself. Only Hashem gets to judge us after 120 years.