Thank you for the update, mirocu. I did go look at Gstaff's thread, followed his instructions and registered. Happily, Acadian was available as a call sign and I had no problems. Not sure what it means exactly, but I am registered now. Lol.
mALX was still available,

I signed up as my decrepit self, but won't visit there again until I know the forums are active. Wanna link straight to 'em rather than contend with the Bethesda.net home page, which I have no interest in.
This.
Some notes that may have relevance to others:
I registered from my browser at home, and tried to login from work. It accepted the name and password, but sent me an email (to my home server) with the login link for the "new browser or device". It's likely that will happen any time you clear your cookies, so make sure the email address you supply the first time isn't temporary, or you might get locked out.
User names containing spaces aren't allowed, as the space acts as a delimiter in some of the interfaces, and the name would get truncated at the space. Presumable Pseron Wyrd has changed his, as he states he can get it. Only one non-alphanumeric character, too. Can't see any reason for that restriction. Accented characters should count as regular alphabetic ones.
Urk, my email / IP address about to change; and I just signed up.
This all just sounds too tedious. Though I'm mostly concerned about just two forums - OB Mods and the (frequently excellent) Construction Set forums. But it looks to me like The Assimilation Lab and TES Alliance (and Chorrol, of course!) can fill the gap mightily, so I just may not bother with Beth Forums at all once the change happens.
TESAlliance just changed their forums a few months ago too, I'm not thrilled with the changes

Hope Rohugh isn't around this time.
Time to bypass the ban.

Ended up registering just for the sake of reserving my username. After all, you don't know that you mightn't gain great notoriety in some distant future...
Oh, and Firefox worked just fine for me.
Yes, I already had one person try to impersonate me on here, didn't want to leave my name open for another horrible incident like that.
bobg- so thrilled to see you again! Best wishes to you and your Mrs., hope things improve.
Not as thrilled as I am to be acknowledged by you. I have always considered you a bright flame in a bonfire of brilliant writers. Thanks for your well wishes. We plug along, laugh when we can, cry when we must and thank god for it every day.
I also have wondered how your wife was doing and often thought of her; thought well wishes for her health.