I don't believe the author of the thread was saying that all his window zippers were frozen (many models of blinds don't use zippers at all), it was the main zipper to get into the blind.

As for quietly removing a few stakes to be able to get under a corner of it, unless there is an issue of wind blowing very strongly from that direction during the hunt I wouldn't see it as a problem at all and would be my preference if hunting that blind location was going to be ideal for that day vs ending up moving to a completely different stand which may be less productive.