Thanks Rick for you comments
Having cleaned up a number of profiles with sourcing that consists of [[ #S371 ]] and not much else, it is frustrating when trying to build a profile and often it all has to be redone. If as you say Ancestry subscribers can use a share option which gives more details, great, wish more folk would use it. Yes a citation is better than none, but a number and little details does not equal a citation.
The following is from wikitree own guidlines on sourcing
Links to sources on paid subscription sites such as Ancestry, FindMyPast, and MyHeritage can be frustrating for WikiTree members and visitors without access to these sites. We recommend searching for a freely available copy of the source document on sites such as FamilySearch, USGenWeb, Archive.org, or HathiTrust.
If the source record is only available to paid subscribers, when providing the URL please also extract as much information as possible, such as relevant names, dates, and the source of the original data.
Perhaps I could have worded my response a little better however as you can see my comments are based on wikitree guidence https://www.wikitree.com/wiki/Help:Sources_Style_Guide
Thanks again Janet