Please, what is it meant by "watercooler" in this context?

[BB98]

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WaterCooler/ other social media

[Menard K]

In the "old days" of offices, there was the watercooler
where people would stop to get a drink, & also talk to others.
and it became known as the meeting place, very informal, but a meeting place.
so for the on-line community naming a social media bit "WaterCooler" makes perfect sense.

Can U dig it?

[Warren]

Need more information, context..........it may just be a watercooler