It's funny how fast the 'Possibly Russian ads' in the original story became 'Probably Russian ads' and then 'Bogus Russian ads.' It's also telling that FB declined to say who they favored, which reading between the lines means they were most likely a mixed bag sowing chaos fairly evenly.
And just because they sow chaos is not actually interfering in the election, I believe the Russians like anyone else can publish any BS they want to in our public media under normal First Amendment rules. There's nothing in there that says 'Unless you're a furriner.'