"As bonus I personally and other users have experienced that clicking away a banner made the banner appear again within the hour visiting other pages. I had that at least four times on a project, on several projects. Re-appeasring after being clicked away is useless and disturbing."
I'm not sure what happened here; a banner should not reappear after you click hide (at least not until two weeks have elapsed). "Also it is annoying that I need to click the same banners away on each project I visit, many users visit Wikipedia, but also work on Commons, Wikidata, etc." Bug 16821 addresses this issue. I have submitted a patch  today that will enable this. I am coordinating with Greg G; but will probably deploy the patch (and another one that will make CentralNotice use mobile URLs on the mobile site) tomorrow in the Lighting Deploy window at 1600 PST.  https://bugzilla.wikimedia.org/show_bug.cgi?id=16821  https://gerrit.wikimedia.org/r/#/c/92777/ ~Matt Walker Wikimedia Foundation Fundraising Technology Team _______________________________________________ Wikimedia-l mailing list Wikimediafirstname.lastname@example.org Unsubscribe: https://lists.wikimedia.org/mailman/listinfo/wikimedia-l, <mailto:wikimedia-l-requ...@lists.wikimedia.org?subject=unsubscribe>