Diane Keaton in Annie Hall: WTF was awards-worthy about THAT?????

There is some anecdotal evidence (most of it old) about voters giving their ballots to their grandchildren (the same stories keep getting repeated year after year) but there is no reason to believe that it is widespread.

The comment about "reasons other than being deserving" is usually reserved for wins by minority (and sometimes women) actors and directors. In those cases I either ignore the comment or call out the commentator.