Raising the price for tld would actually be a good thing, as it would make "domain investing" (domain hoarding) unprofitable.
Let's say a .com costs $1,000 per year. For a legitimate business / organization, that is a trivial cost. For a domain hoarder, that makes keeping domains by and large unprofitable.
The author of "Escape from callback hell" goes indeed too far. This is of course a matter of opinion, but I found that 3 levels of nesting (in javascript for nodejs) is usually perfectly acceptable and readable. If there are more than 3, I use async to get a nice, linear looking flow.
Let's say a .com costs $1,000 per year. For a legitimate business / organization, that is a trivial cost. For a domain hoarder, that makes keeping domains by and large unprofitable.
Killing this parasitic activity is a good thing.