Unfortunately, I use MCCC, so I suppose my save files would be useless. But I'm playing a legacy game that's over a year old, in its 17th generation, and since the 16th generation I have had 6 alien abductions after having none since the 3rd generation. First was on Jan. 9; I play almost daily.
I run a small Sims group on Facebook (about 20 members, maybe 6 actively playing, but not daily). One has had 4 alien abductions that started before mine. One had one a week or so ago. Another had one today. I can't remember when we had any before this recent spurt.
I'm going to guess that this came from something in the Dec. 3rd patch, because I don't have EPs or SPs installed more recent than Eco Lifestyle; that's one aspect of the legacy I'm playing (one EP or SP per generation).
Anyway. The whole thing makes us rant and rave and laugh, but I can well imagine it upsets a lot of other folks.