It's an old topic. I tried to discuss it in 2015 https://meta.wikimedia.org/wiki/User:Alexmar983/sandbox#SUL_issues and also again at an informal after-meeting weeks ago. First of all, there is no strong global management of username blacklist as people might imagine. Beyond the cases of username that might be offensive and blocked in one language, some platforms for example do not accept "institutional accounts" that are accepted on other ones, ad this is a big one. They should be probably unblocked on the log term Also, dead users are handled differently. Blocking policy for proxy are also different. I could go on and on but most of the problems are still there. Whatever, soon or later we will fix them. I suppose some people need their time... in some cases it does not matter anymore, you just select tolerant platforms and ignore the ones with more rigid or dysfunctional policies. It would be nice to accept that there is some work to do. Alessandro Il venerdì 26 marzo 2021, 10:35:09 CET, Vi to &lt;vituzzu.wiki(a)gmail.com&gt; ha scritto: Username blacklist has already been global since 2015, see https://phabricator.wikimedia.org/T38939 Vito Il giorno ven 26 mar 2021 alle ore 10:06 William Chan &lt;william(a)wchan.hk&gt; ha scritto: Hi, I have observed that there is a global renaming policy but a global username policy is absent? As we all know that usernames are global following SUL, and literally the same username will be used across multiple wikis. So, a very simple question is raised: shall there be a draft of the global username policies, considering usernames are now global? Also, also due to SUL, it seems that username blacklists should be put at a global scale, or it may just be not logical as one may just escape one wiki's username blacklist through creating it at another project, and use SUL to circumvent such block. I hope for broad input, considering this may mean a broad policy change, and what I have in my mind is just a very primary idea to install a Global Username Policy that acts similar to the current Global Rename Policy that is in enforcement. P.S. I put it here before placing it on meta RFC is not to avoid circumvention but hope to seek more input instead of just bumping a very large policy change without any external input. Regards,WilliamUser:1233_______________________________________________ Wikimedia-l mailing list, guidelines at: https://meta.wikimedia.org/wiki/Mailing_lists/Guidelines and https://meta.wikimedia.org/wiki/Wikimedia-l New messages to: Wikimedia-l(a)lists.wikimedia.org Unsubscribe: https://lists.wikimedia.org/mailman/listinfo/wikimedia-l, <mailto:wikimedia-l-request@lists.wikimedia.org?subject=unsubscribe> _______________________________________________ Wikimedia-l mailing list, guidelines at: https://meta.wikimedia.org/wiki/Mailing_lists/Guidelines and https://meta.wikimedia.org/wiki/Wikimedia-l New messages to: Wikimedia-l(a)lists.wikimedia.org Unsubscribe: https://lists.wikimedia.org/mailman/listinfo/wikimedia-l, <mailto:wikimedia-l-request@lists.wikimedia.org?subject=unsubscribe>