The errors related to lines 3513, 3520 and 3668 are (I think) safely disregarded. I can reproduce them several revisions back; these sorts of equality test warnings are really common whenever a function returns "undef" when a string is expected. We've been fixing these warnings for a while, but it's hard to catch them all.
The substr errors appear to be related to icons stored in blobcache instead of mogilefs. I haven't been able to reproduce because I use mogilefs for my icons. But again, not likely related to the problem at hand.
That said, I'm not getting comment emails from my dreamhack either, but I'm not sure I was before. I did get an account expiration email when I turned on my workers for the first time in a while, so I know email notifications aren't completely broken.
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The substr errors appear to be related to icons stored in blobcache instead of mogilefs. I haven't been able to reproduce because I use mogilefs for my icons. But again, not likely related to the problem at hand.
That said, I'm not getting comment emails from my dreamhack either, but I'm not sure I was before. I did get an account expiration email when I turned on my workers for the first time in a while, so I know email notifications aren't completely broken.