You haven't been on the internet long have you, you sweet innocent child...
It's a whole thing, food directly on the table. People do it at home, people like these fine folk I found via google images, go out and pay for this...
Ugh.
Its gross, the Grazing table is a vile abomination, the bastard son of the buffet and it needs to be stopped.
Not only is it all touchy touchy, and people will lean over it, breath on it, RUMMAGE IN IT, knock it all over the floor...
But its so wasteful, and people brag about it like they created a culinary master piece when in fact all they've done is open up half of Morrisons deli section and dump it on a table. Yay you, you opened packets!
I also think its a rather grotesque braggy 'look how lavish we are with all our foods we can just dump on a table, a whole tables worth of foods...' bleurgh.