The MSM has been treating them all as a series of random "gotchas", but I think they can be interpreted to yield compelling political arguments.
In the case of the Conservatives these stories can be used to remind the public that the Party still has plenty of nuts in the cluster and, beyond Harper himself, makes for an extremely weak team. For the most part, Harper has been keeping the crew from the old Reform Party Crazy Train (Levant, Chandler) in the backrooms, sweeping floors and handing out donuts and such. Bloggers like Reid and Warawa serve to shine a bit of light on the political heart and soul of Canada's Conservative movement and the party that exists to serve it.
Several stories involve bloggers who were first asked by CPoC to "hide" their blogs, and then got into trouble when the contents of these blogs became more widely known. Again, such stories can be used to remind folks that the Tories may still harbour a secret agenda, at least at the candidate level. Literally: views that they don't want the Public to know about.
Furthermore, the meltdown of the Tories on-line campaign can also be used to frame a more general narrative of Tory incompetence. Whatever else has gone right for them, and something has or they wouldn't be up by 10 - 15 points, their Web strategy has been an unmitigated disaster, what you get when tiny brains encounter too much money. You have to wonder whether the Tory war-room and Net antics are not their next government writ small, should they achieve Majority status. Do you really want to put the nation into such hands?
Similar arguments can be made in the case of the Disappearing Dippers. I mean, I support marijuana decriminalization, but do we really want some guy that went on Youtube and tried to jam 30 joints in his mouth at once negotiating trade agreements? The seriousness of the Party depends upon the seriousness of the candidates it is capable of putting into the field. These incidents speak ill of the party.
Fortunately, the Liberals have suffered very few of these kinds of gaffe. An argument for their Centrist credentials, perhaps? The party simply attracts fewer flakes and crazies.