Uploads do not last a lot longer on Eweka. That is a common misconception that the corporate staff at Eweka seem to be successfully pushing so they can trick you into buying their product TWICE. They own Eweka plus a bunch of other US based sites and want you to purchase an account at eweka and an account at one of their US sites. Now you can see why people are leaving Usenet, when the largest provider is shady like that.
Eweka has to follow NTD rules which are just basically the EUs version of DMCA. Both NTD and DMCA providers get all the same notices I’ve read. Maybe it takes a couple extra hours to process NTD but if you’re using automation then you will be grabbing it in the first 24 hours anyway.
Don’t waste your time paying the extra money for Eweka unless maybe you’re in the EU and just want a server close to you. They don’t have a US based server location.
I think Newsdemon was still on Omacon 2.5 years ago so maybe that was the issue.
If you’ve been following on the Usenet subreddit there has been a lot of info about Omacron being bad. They’ve run off competition and done some shady things with user data. I think they even voluntarily handed it over to the government once for a court case. They own Eweka.