From discussions we had with members of the Luxembourg ISOC chapter, it appears that ISPs over here do a terrible job at offering a good Usenet service. Some people complained that they had to buy the service elsewhere. Others just gave up because their ISP was not carrying the groups they wished and offered a very limited choice.

Strange, because offering good Usenet service is neither difficult  nor expensive. In less than 2 weeks, we have been able to offer to our members a good service, with multiple peers, all of which do it for free. How come a volunteer not-for-profit can do what a commercial ISP cannot ?
This is quite typical of the mostly general attitude of ISPs over here, which is along the lines of “Pay your subscription and don’t complain”.