The Wikipedia article about this site is awful. When I went there today for the first time, they even had the name wrong! ("Stack Exchange" instead of "StackExchange"). And in the infobox they said the owner of Stack Exchange is "Prosus" which is, of course, the owner of Stack Overflow. The article states that StackExchange is not Stack Overflow, but the infobox gets that wrong. I could go on and on. I made a few changes. Removed from the infobox the misinformation about the owner. Wikipedia article names are hard to change.
link ... Stack Exchange - Wikipedia — https://en.wikipedia.org/wiki/Stack_Exchange
{{start date and age|2009|9}}means or what<ref>does. Fortunately the inappropriate edits have been reverted by Anerdw.