Seems like the default scratch profile picture won't load in some places. The comments under profiles will not load for any profile. The button to change your profile picture is gone. There are no buttons above this text box for the forums. “My stuff” will not load any projects.

Yep, I've been experiencing those issues as well. About the “My Stuff” not loading any projects – to the best of my knowledge, it's been happening for the past few days and (unfortunately) I have absolutely no idea how to fix it. I can't see them on my home computer, but I can on my school computer.

If either of you have a phone with mobile data, try accessing scratch through that? (Only mobile data, not Wi-Fi)

same

I have this problem too.

Please discuss the My Stuff bug in this topic: https://scratch.mit.edu/discuss/topic/727967/
If you need more info on it, go here: https://scratch.mit.edu/discuss/topic/756184/
In the meantime, there is a text version of My Stuff that here: https://scratch.mit.edu/site-api/projects/all/

The profile comment bug has often been linked to the My Stuff bug. It's possible that the profile picture bug is linked to it too.