For the last few weeks I've gotten invites to at least 7 of these invites, even though until today I didn't even have an Atlassian account.
Even without joining, I was getting phishing spam notifications that were being created on the product. The advice I found was to forward the emails to https://www.atlassian.com/trust/report-abuse, which I have
I kept getting more emails so I created an account today to post here. I looked around and the 'products' that added me without my consent (or even an atlassian account) still exist. I've gone in and messed up the place, deleting the dangerous links, but I suspect it's more work for me to do that than it is for the spammer to create and populate an account.
Here is a list of the ones that are still on my account:
hw9tfu2.atlassian.net/
xv2dt4n.atlassian.net
xd7vcyj.atlassian.net
n0xadzh.atlassian.net
ocalthx.atlassian.net
gmrjb2a.atlassian.net
fmyip80.atlassian.net
How can I stop being added to these things without my consent? It's not even clear to me how I could leave these sites short of deleting my Atlassian account, though I don't think that would solve anything anyway.