A very pertinent point. In the good old days of the terracing (misty eyed nostalgia) you stood with your mates and if you were all singing folk gravitated towards the group and it became larger and vice versa. Before long you hit a crescendo in "f
uck yer Lou Macari" or the likes
There was no proclaimed
singing section (the whole term currently irks me due to perceived status) it was just likemided people together whereas others sat in other stands or stood in another part.
Early to mid 90's we used to go to the EE and it was excellent, chanting throughout, chanting at the Copland etc. and was a laugh, it came easy. I'm sure the WE done similar.
The demand for all seater and most ST has killed that ease of atmosphere.