Generally, we tend to get around a few blatantly off-topic questions here on this site because...reasons.
However, yesterday and today (UTC), I noticed that the number of off-topic questions had increased from normal levels; yesterday, I spent more than half of my daily close vote allowance voting to close these posts, and today, they still continue to pop up.
Is it the same cause as last Halloween, in which an email newsletter with links to MSE was sent out? The normal causes I linked above don't seem to apply here, since those normal causes usually produce fewer off-topic questions than lately.
It was also mentioned in that post that the interstitial page was going to be enabled here on this site as a result of the last uptick; was it enabled?