Yellow should be avoided when practicable, but green is more than OK with the seat belt on, especially when the cabin crew are seated. Sure, fly around green when it costs almost nothing, but the terminal area is not the place for this when there is a lot of traffic.
I thought the aim of the game was to have the seatbelt signs on as LITTLE as possible. Just sticking them on as an excuse to fly through weather? Thats very customer oriented of you!
As for traffic, if it is an issue then ATC will say so!!
My point was that the CX "never fly into green" mantra is so ingrained that even when a pilot is flying a freighter he avoids green. This supports my theory that so many CX pilots are automatons that they can't (or won't) think, "Hey, I'm in a freighter! No need to avoid green today!"
With lithium batteries poised to explode into flame if they are damaged or rubbed up against something else, perhaps avoiding as many bumps as possible should apply to the freighter as well if not more?