quip.thread_err_nf
This question has been answered by donshakespeare. See the first response.
[[!Quip? &thread=`article-b[[*parent]]-[[*id]]`]]
[[!QuipReply? &thread=`article-b[[*parent]]-[[*id]]
[[!Quip? &thread=`Articles` &threaded=`0` &useCss=`0` &tplComment=`modifiedComment`]]
[[!QuipReply? &thread=`Articles` &moderate=`1` &tplAddComment=`Quip Form`]]
&thread=`article-b[[*parent]]-[[*id]]