The research author, Felipe Ortega , said:

“If the negative trend is maintained for too much time, say one or two years, eventually the project could enter a problematic phase,”

Personally, I think Wikipedia experiencing problems would certainly be a good thing. They are ranking for too many terms on domain authority alone, when there are dozens of better resources stuck below them in the serps.

I have also never understood why so many people spend massive amounts of their own time working for free to line Jimmy Wales pockets.  Perhaps some of these 49,000 people left Wikipedia to set up blogs on their specialist subjects?

Martin Adams

Searchengineoptimisation.org