Had some normal e-mail back-and-forth, very low traffic rate, then it suddenly went spammy. Most of his other online output went spammy, too. The sole remaining place where he shows up, his posting has gone...odd. Nothing but roughly-profile-appropriate links. Can't get a response via any e-mail or online messaging address for him.
I really dislike calling people up on the telephone. Given my extraordinary ineptness at (and hard-learned desire to avoid) most close human interaction, if I do dig, I'll probably find out it's my fault. Or he's found himself a new and better class of friend (in which case, see previous sentence and good for him).
But the manner of it is...unsettling.
Well, at least it's not The Ebola, right?
T. R. MCELROY'S STREAMLINED TELEGRAPH KEYS
11 months ago