Currently, outside stub and user-added-templates, there is no way to make quality/reliability of an article clear to the casual reader. This is a problem, given the increasing spam-penetration and such (see en:User:Doc_James/Paid_editing). A solution would be to 1) enable en:Wikipedia:Metadata gadget for all readers by default, 2) develop a complementary script, which would also display (perhaps upon request, accessible from a toolbar or heading) information about number of watchers, major contributors, and perhaps one of the numerous trust-values that are discussed in several academic papers and 3) add an article checklist for common problems - see my proposal below).
--Piotrus (talk) 05:21, 10 November 2015 (UTC)
This card tracks a proposal from the 2015 Community Wishlist Survey: https://meta.wikimedia.org/wiki/2015_Community_Wishlist_Survey
This proposal received 11 support votes, and was ranked #63 out of 107 proposals. https://meta.wikimedia.org/wiki/2015_Community_Wishlist_Survey/Reading#Make_quality.2Freliability_of_an_article_more_clear_to_the_reader