Does Blinding Cloud not affect Widow Mines?
Is it true that Blinding Cloud doesn't affect Widow Mines?
If so, why wouldn't it? Are mines not counted as units or is this simply a bug?
Yes, the widow mine "attack" is in fact an ability. For the same reason you can storm out of a blinding cloud, a widow mine can "attack" http://www.teamliquid.net/forum/viewmessage.php?topic_id=401882
As Hugo mentions, the Widow Mine "attack" is an auto-cast ability.
I tested this in-game; Blinding Cloud will not save you from their husband-killing ways.
