Sucks that even though the SF city budget is nearly $2 billion larger annually than it was in 2011, we can't seem to divert more funds to teachers because of how convoluted the school financing formula has become post-Prop. 13.
The article mentioned "this uninhabitable home possibly infested by rodents and held up by a couple of poles" selling for $1.8M, but neither that or the linked one mentioned the owner was paying tax on only $70k of assessed value.
There are often comparisons made to Texas-- in this case, someone owning a $1.8M house would be taxed around $54,000 a year in Texas, versus the $700 he was paying in property taxes in California.