Ah, those were what we used to use as the jail when playing tag when we were kids. If you got tagged you'd go sit/have to stay touching that until someone else could try to free you without getting caught.
I can still feel how it vibrates/hums without having to be near one.
Why did I automatically imagine that hot dog gif...
To be fair there is a decent amount of people here who may enjoy that though. Straight males would likely struggle here like most other dating sites.