My experience of people who bore their audience with overly copious quantities of images is, they don't really have an interest in their method of photographing to any depth. That is they show the images in order to present a record of themselves in the situation. I think that is fine if that is your objective (and you don't mind seeing your friends irregularly).
Thought provoking.
I've been there, done that (though not for a great deal of time, now) and have the scars. However - the INTENT of "showing the slides of the vacation" is rarely a "show of photography"; rather it is a "show of place" ... that's where we were!!
I understand your point that "it is a record of themselve in that situation" when taken in the context of a "show of place" (emphasis on "place").
But... the same "record of themselves in that situation" is true of the most noble of goals - when the emphasis is on "themselves" - the "Self". It is a record of the emotional involvement of the photographer, his/her reactions, and the "zeitgeist" of that moment.
However, I guess there is an assumption behind this particular discussion that the purpose is for something more than just record shots.
If you are a person who naturally likes to improve your abilities, particularly in areas that you are passionately interested in then why would you not take every avenue available to do so with your photography?
Let me count the ways... Because some are NOT ethical; because some can cause irreparable grief to someone else; because some are simply counterproductive, and not worth the time, money, or effort.
But even if you are happy with where you are at and you only do it for fun and a sense of satisfaction through self expression; photography is a method of visual communication and it takes at least two to party (as already mentioned so well).
I will agree, to a point. I don't think it is EXCLUSIVELY - ONLY - a means of communication: there is a great deal more. Try an expression of thanks (similar to a prayer of thanksgiving) for the beauty in this world, among others.
I do believe it is important to be honest with yourself about the level at which you are at, and find an audience appropriately. The audience could be friends or a club, or it could be a successful advertising agency who will have expectations to be met or savy art buyer who will have expectations to be moved. Whatever sails your boat.
The audience that has most difficulty being objective about your photography is yourself.
Well ... if "honesty" requires "objectivity", and I think it must, it will not be easy... however ...
Given this more thought, I do NOT want my work to be "objective" -- I want it to display a great deal of my "self" ... and that is the very definition of SUBJECTIVE.
What "level" am I at (with apologies for the syntax)? I don't know. How many "levels" are there, and how does one (or anyone else) determine where they "belong"?
To tell the truth, I don't know ... nor do I see any advantage in knowing. I'll simply continue on.
That way, I can reach for the stars.