Before today it has been months since i had a weasel error, but today within a 2 hour raid, i received 5 weasel error codes. It wasn't just my internet either, i had full green bar, running at 20mbps (more than enough to run destiny) still disco's, a few others within my raid team also experienced the sane thing.
Not sure what's going on bungie but you should definitely fix it, literally right about to kill Oryx and froze up, you know how infuriating that is?