DeltaBetaBaby's point was poorly expressed and I'm glad that people across councils and conferences disagree with that part of the post.
If DeltaBetaBaby indeed meant that he won't want to attend mixers with 22 year olds (which isn't a given because across councils and conferences there are alum who attend certain events with younger members) but would instead want an alum capacity, that may be the case. But, it is completely up to the fraternity, the chapter, and the individuals to figure that much out. The opinion of randoms on Greekchat and elsewhere doesn't matter.