I have not seen this mentioned before as a tactic, but it is something I find useful in my solo games. It does seem a bit unfair, though.
As you know, you can rush build under despot and communism. You may not have noticed that you can 'bootstrap' the hurry process to complete a building or just cull the population in a single turn. This is especially useful when you are a religious civ, so you can switch to communism/despot as needed for one turn.
Consider this scenario: You are at war with a strong cultural civ, and have just taken a city far from you capital and close to their capital. You are concerned about defection and collapsed cultural boundaries. The solution? As soon as the resistors are quelled you hurry build the most expensive cultural building available. This addresses both problems at once by giving you a culture building and reducing the pop of disloyal citizens.
You do this by first hurrying the highest shield cost item available that will consume only 1 pop. Then repeat the process, choosing the most expensive item that consumes the least pop. Eventually you have enough for the desired building, or only 1 pop left. If you run out of pop then take the next best building. After that is complete use whatever remains to get a head start on the next build order. Don't stop until only 1 pop remains.

My choice is for courthouse/library/temple/wall for larger cities, and wall/temple/library for front-line cities. I have completely eliminated the defection problem in this way, even when I am far behind in culture. An added bonus is the faster rebuilding of the city and repopulating with your citizens, since the surounding land is usually primed for fast growth. This also mitigates the problem of foul mood, since the pop is low during the next 20 turns anyway.
As I said, I sometimes have a guilty feeling after moving my troops down the road after 2-4 turns. What do you think? Is it a cheat or just an exploit?
As you know, you can rush build under despot and communism. You may not have noticed that you can 'bootstrap' the hurry process to complete a building or just cull the population in a single turn. This is especially useful when you are a religious civ, so you can switch to communism/despot as needed for one turn.
Consider this scenario: You are at war with a strong cultural civ, and have just taken a city far from you capital and close to their capital. You are concerned about defection and collapsed cultural boundaries. The solution? As soon as the resistors are quelled you hurry build the most expensive cultural building available. This addresses both problems at once by giving you a culture building and reducing the pop of disloyal citizens.
You do this by first hurrying the highest shield cost item available that will consume only 1 pop. Then repeat the process, choosing the most expensive item that consumes the least pop. Eventually you have enough for the desired building, or only 1 pop left. If you run out of pop then take the next best building. After that is complete use whatever remains to get a head start on the next build order. Don't stop until only 1 pop remains.

My choice is for courthouse/library/temple/wall for larger cities, and wall/temple/library for front-line cities. I have completely eliminated the defection problem in this way, even when I am far behind in culture. An added bonus is the faster rebuilding of the city and repopulating with your citizens, since the surounding land is usually primed for fast growth. This also mitigates the problem of foul mood, since the pop is low during the next 20 turns anyway.

As I said, I sometimes have a guilty feeling after moving my troops down the road after 2-4 turns. What do you think? Is it a cheat or just an exploit?