Although discussion can meander in any topic, the probability of meandering goes up as the technical difficulty of the topic goes down. After all, the greater the technical difficulty, the fewer participants can really follow what’s going on. Those who can are likely to be the most experienced developers, who have already taken part in such discussions thousands of times before, and know what sort of behavior is likely to lead to a consensus everyone can live with.
The principle that the amount of discussion is inversely proportional to the complexity of the topic has been around for a long time, and is known informally as the Bikeshed Effect.
– Karl Fogel, Producing Open Source Software