Your comments
You could also do more homework yourself. Or start a new topic, don't forget about daily riddles and remind your cluster members.
They were working on something many of the sites were down for a few hours. They work now. Sometimes it works if you try accessing it from a private window.
Ideally, they happen randomly in each 4-hour window, but they could be broken a bit.
You did not specify the site. Contact the mentor of the course and the MoM of the site.
This sounds like a cool class would it fit in the site? You would have to ask a MoM of that site, I believe. Or you could join another site that has such a class.
What about chat messages sent?
I noticed that if you created the conversation then you can remove yourself from it and it's removed no work around for the conversation you did not start though.
Customer support service by UserEcho
You can do this yourself by manipulating the page quite simply just a bit of technical knowledge is needed.