I have a feeling B wanted to use Signal, but expected it to be difficult to make others shift. When OP gave the opportunity, B came in and swyped it right away,
They are doing similar stuff with deliberately delaying Linux driver capabilities for Radeon 7xxx series, to make more GPUs die out faster, by overheating (zero RPM fan until 60Β°+).
Because they look like large outlets of coloured air.
Coloured air coming out of an something is the default way of depicting air pollution.
Even if it is just water vapour, it has a big enough shock factor.
Do you have a vacancy?