Like Jack, the Ripper would say, "let's do it by parts":
Regarding messages you post not showing up on the list, yes the information is cached, so there might be a delay in them showing up, although notifications will have been sent. Paginator does the caching.
Weird FROM addresses: Notifications has a feature that you can reply to a forums message via e-mail. That weird FROM address is how it keeps track of what message the e-mail is replying to. We're working to improve the forums messages "usability" with better headers and all that.
The three links at the bottom have [1],[2],[3]. Look at your message and you'll see the [1],[2],[3] pointing to those links.
The two e-mails is probably an artifact resulting from a combination of events. You probably changed your e-mail in your openacs.org account from when we first migrated (August) and a couple days ago. Our migration script was supposed to catch that, but it didn't, so you now probably have two accounts created and subscribed. Look at openacs.org/directory/ and see if you find two of you, and delete one of them. We're finding a way to merge accounts.
Timezone: dunno.
The "glitches" as you can see, are not forums glitches (it has other glitches, but none that you pointed out). They are the result of a massive migration from a totally different code base and data model 😊
Our apologies for the temporary inconveniences. We are working on them.