The Window Explorer properties tag shows that the zoterto.sqlite uses about 30 000 KB and the zotero folder 412 MB with more than 27,000 files in 492 folders. Is this ok ?
you can delete them manually, yes.
It's not that easy to write a scraping software that does that automatically, so if that was the question, the answer is no.
It only sends a notification for the first post after the last time you visited the forum. It doesn't send them after that until the next time you visit (and are logged in). Maybe that's why it seems erratic to you?
ah OK - yes, that's more complicated than I imagined it. It hasn't bothered me so I haven't tried to track this down systematically, but generally that could have been it.
That's just the way the notification plugin we use works, but, yes, given forum activity, sending an e-mail to every subscribed user for every post would generate a huge amount of traffic.
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It's not that easy to write a scraping software that does that automatically, so if that was the question, the answer is no.
BTW I get no notification though I subscribed to the forum, the category, the discussion. How can I get notifications ? Does the functionality work ?