My biggest concern is what happens to the people who might have been shut out who don't have a way to contact people on the site or might just assume it's been shut down or that they've been banned.I was having issues accessing ZD a few times over the weekend myself too but it seems to be back to normal for me now.
The issue has been raised in the staff chat and I am awaiting further information from @Mases regarding whether or not specific IPs are being impacted site wide.
If you are having sustained issues (i.e. the site or forums isn't loading for you at all at any time) please PM Mases and myself together with your IPv4 and IPv6 address (you can find that here https://whatismyipaddress.com/) of the network where you are seeing the issues so that it can be troubleshooted. Please let those who can't access the site at all know that they can send this information to me on Discord alternatively.
If the reason we can't get on the site is because the IP ban list wrongfully added a bunch of us, then it might be better to save a copy of the list just in case, remove all ip bans aside from any sort of standard blacklisted ips you might have, and then manually re-IP ban the IPs of any users you think need to remain IP banned. I don't think asking members to manually provide their IPs is a very clean answer and I would be surprised if the admin console didn't have a way to look up our IP addresses in XenForo.