I use gmail as my primary email. The spam filtering is brilliant.
About once a week I check my Spam filter, which will have somewhere between 3k and 7k messages in it. (I've had this email address for a LONG time.) I scroll through the first page or two out of some false sense of caring, and then Delete All.
Last month, all my spam started coming in German. One week it was all English - The next week German. And it has remained that way for several weeks now.
I'm sure this Means Something. Digital tea leaves. Layers of mystery...