Maybe this is posted elsewhere but I've dug with no results. I've gathered that the GBCN boards that are not explicitly parenting-related using a @ to give a CW/TW for mention of children. Here's my dumb question -- does this somehow allow folks to filter out those posts via ProBoards? Or is is just a general head's up CW/TW and the person would just know to stop reading? Sorry if I sound like I live under a rock.
I have seen this carry over to other boards from CEP, but it's only common practice on that board, from my experience. But like hocus2 said it's just a general heads up; there's no special filtering that it enables.