Ronald,
I agree with you. I think some of it, like esoteric developing methods such as stand developing, represents the perpetual quest for a "Magic Bullet" some photographers spend a lifetime chasing.
Pushing is useful in some types of work, like photojournalism, where getting a shot is so important that you can sacrifice absolute quality (example, if the film you have isn't fast enough, you can push to 'get a picture' even if the picture sucks..its better than no picture).
Using old film is just tightfistedness. I know some people who do it genuinely don't have much money, but RFF is full of men who make more than 95% of the population of the USA or the EU, who own $30,000 worth of Leica gear, and then quibble over spending $6 a roll for film. Dumb, dumb, dumb.