The problem with Wikipedia is that their business model always struggled and left nothing to support much of a rethink. There clearly exists a raft of problems, many of which should have long been resolved. The most serious points to credibility and specific activity by rogues to produce problematic material.
This article brings up the whole meme of holocaust denial as well were legitimate work is demonized in order to protect an obvious and dated propaganda MEME.
The whole topic has been a chronic issue since the end of WWII and actually blocks serious research unnecessarily. Accounting properly for the Genocides of the Twentieth Century has never started. Do we really know exactly how many died among the Armenians in 1918? The turks still prevent original research.
Normative statistical work can only produce estimates and choosing times and dates and effects of other factors can produce an estimate along with an estimate of error level. Thus the proper way to discuss a genocide is to quote say six million clearly missing with an error factor of plus or minus one half million. Then you do collect lists and demand from any denier a resolution.
Wikipedia is a potentially valuable asset, but does need to be directly partnered with Encyclopedia Britannia who has ultimately settled onto a subscription model. With the subscription, you pay for vetted material and you could also attach review branches handily.