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Nah me too, I think its a cool pic for the same reason. Only they arent spot welds, just caulking marks.( basically glue)
The reason being, if a large panel like a bonnet was spot welded through the middle, you wouldnt want to park the car in the sun. As it heats up, the panel needs to expand a little and spot welds would hold it too tight and ripples would show up in the bonnet. The caulking fixes this problem by holding the panel stiff but still allowing enough flex to prevent any distortion.