What Others Think WOT means is Wide Open Throttle but I think it means Willing and Obliging Tart.
It could also be
Web of Trust
War on Terror(ism)
Wheel Of Time
Waste of Time
Way of Thinking
Way Off Topic
Women on Top
Wall of Text
Women-Only Training
Work Order Ticket
As for WFO, is Wide Full Open or Wide Full Out, at least in a motorcycling/automotive context.