So with F3 I've hardly looked at it at all, only to see if it was possible to save the Sheriff after shopping Burke and after Tranquillity Lane, and I've enjoyed it much more. For instance I've now completed all but a few quests, including the DLCs and I've only just discovered the Outcasts hideout and why the BOS in F:NV is so different to those in F3.
Now I'm in the end I'm checking it occasionally "after the event" when I've been somewhere or completed a quest but I think even this is spoiling things and reducing the replay value.
So is checking the wiki a good thing, a bad thing or a guilty pleasure?