Message MediaWiki:Bs-blog-pref-showall is ungrammatical.
Its message documentaton MediaWiki:Bs-blog-pref-showall/qqq is ungrammatical, too, and does not convey any useful information.
Same with MediaWiki:Bs-blog-pref-shownewentryfield
Same with MediaWiki:Bs-blog-pref-showpermalink
Same with MediaWiki:Bs-checklist-dlg-new-prompt
Similar with MediaWiki:Bs-insertmagic-pageid
Same with MediaWiki:Bs-blog-pref-moreinnewwindow
See also:
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Bs-blog-pref-showall/ksh
and
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Bs-blog-pref-showall/ksh_%282%29
and
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Bs-blog-pref-shownewentryfield/ksh
and
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Bs-blog-pref-showpermalink/ksh
and
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Bs-checklist-dlg-new-prompt/ksh
and
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Bs-insertmagic-pageid/ksh
and
https://translatewiki.net/wiki/Thread:Support/About_MediaWiki:Bs-blog-pref-moreinnewwindow/ksh/reply