I don't think over-babying an engine though or lugging it is ideal either. Getting the engine warm as fast as possible within reason is how I look at it.
Probably true. A heavier foot will let the engine get up to temp quicker. No idea if there does exist serious research on which way driving a cold engine lets to less wear.
Major issue isn't oil temp though and I do actually mean the temperature of the oil itself, not the oil temp as an indicator of the engine temp. Biggest issue is the very initial moment of engine start itself, since this happens with zero oil pressure, causing a short phase of mixed friction. This is the reason why huge diesel engines in ships and locomotives use to have both a (fuel driven) pre heater and an independent (electrical) oil pump, that starts before the engine is opereating. Start button is unblocked not before a certain oil pressure is reached. Second main issue is due to expansion, as the pistons will heat up way quicker than the engine block will.
Agree, another unneccessary topic, but I couldn't resist.....