A few months ago I was part of a meeting where we had a big and long dicussion about @todo annotations. (and also the similar ones like @fix, @fixme and so on) The argument was, that they will not be solved, are there for years and nobody cares. Therefore they could also just get deleted. And if there really is something which needs to be done, there is a Ticketsystem for this.
In a perfect company/world I would say yes, thats a complete valid Point.