Why do you not provide active data on realm populations

From some CensusPlusClassic dev issue comments for the source code:

it seems Blizzard disabled the sendWho() API call in a hotfix yesterday. Addons can no longer use this function. This breaks all Census addons. There’s speculation that this was done to limit LFG addons, Census is just collateral damage. Damn shame. I’m not aware of a workaround atm.

reference: https://github.com/christophrus/CensusPlusClassic/issues/17


That doesn’t clearly show a direct connection between breaking SendWho() and the ClassicLFG addon, and I could not find any mention of SendWho() in the ClassicLFG source, except for here: https://github.com/DomenikIrrgang/ClassicLFG/blob/10fad93d5c33d05edb577373cd5f674d0e3420ad/src/util/util.lua#L89

I’d be curious as to whether there is any compelling information that would point to reasons for disabling SendWho() as a public API call that are related specifically to preventing consensus or population data collection.