Eventually, I hit on a new strategy. Instead of trying to generate good tweets I just followed people at random. I forget the exact number, but somewhere between 15-30% of the people I followed at random would follow me back. I realized I could probably get an arbitrary number of followers this way but it would be a pretty stupid and meaningless achievement so I quit doing it.
The "viral post" strategy of the article, asking things like "Who the heck sleeps with the fan on?" maybe similar as a kind of brainless strategy to get followers. I guess some people like responding to these prompts. I suspect it has the same weakness as the "follow back" strategy though. Nobody really cares about the account or connects with it or even understands what you're trying to do. These people aren't your followers so much as they are people who like small talk and coalesced around you for a time.