Adamant1
You should message the person and ask. Especially given that they are a fairly new user and seem to be in process of doing the same thing east of Modesto as we speak. I think its important to know where they are getting their information from and if its a valid source. Not to mention if its an import as it appears to be, id be interested to know if they discussed it first or know the rules about importing things, because some of the buildings the user is importing down south are as bad as here, if not down right trash and could just be hand mapped better. Not to mention you saying the post being used as a source. I'm pretty sure its not OK to use here either. 
You have way more tact about this kind of thing than me though. So if you want to get the conversation going and then send me a link to join in if need be, id totally go for that. I'm a little disappointment in this because I was planning on mapping this area eventually and now I have to chop through badly mapped houses unnecessarily.  Plus I was starting to see new mappers from this area that could of done a lot of it. 
Id guess its an under the radar not allowed import though because of the capitals, height problems you mentioned, and lack of proper sourcing being provided. Given that, perhaps it should be brought up to the DWG if your message goes unanswered. Especially since he is still currently doing it. 