In the meantime posting about this chud is good for bringing attention to it. The other thread about this is why I just blocked the guy so I can get back to wasting my time on my own terms.
Unfortunately, other instances may need to defederate from this one to solve the issue. Hope it doesn't come to that, of course, but in the mean time, yes, bringing attention to the issue is definitely a good move, no matter the outcome.
Matrix contacts?
They may exist, but if they do, I am unaware of them. I've used email and Mastodon to contact them, as have others. I tried to make a post on the BBS that this instance is built around, but it was too much of a struggle on my phone.
SDF = Syrian Democratic Forces. I think they have their hands tied up right now.
Or if the admin is French: SDF = homeless person.
On a more serious note, what does the donation situation look like for this instance? Demanding more time from an admin is a little bit hard if people aren't donating and the admin has a life beyond the instance. Probably getting more people on board would be the solution, but that requires trust.
I don't know the full details about the funding situation, but (https://sdf.org/support/) is where to donate.
Is there any word from admin(s) yet? I'll try reaching out as well.
Not that I have seen, though it is still early, especially on the west coast.
Fans of SDF