Admin team of LGBTQIA.Social Mastodon instance received abuse email from Russian censorship agency, where they demanded to remove an account. The account in question represented a small group that ran a collaborative blog for LGBTQIA youth and adults in Russia.
Shortly after refusal to comply with agency’s demands, the instance was blocked and is now unreachable from Russia.
All previous blocks of Fediverse instaces in Russia were related to hosting CSAM.
You could fix it with a relay, or having the instances conn extend with the rest of the Internet through a VPN/proxy.
Yeah, a PITA but can still be worked around.