All social websites have a lifespan, as users age, as other platforms enter the market. Facebook’s users have aged as they’ve got older, and as they’ve got older they’ve started using it less.
Initial users are in their late-30s now, and the excitement of reconnecting with old friends has petered out, and the method of staying in touch has shifted to whatsapp, or twitter. Facebook’s growth in the UK is amongst baby boomers, who are still joining in large numbers, and using it (see Theo’s thread from yesterday). Below the mid-20s, there are lower numbers joining and lower activity from those who are there.
I’ve not posted a status update in six months (which was thanking people for sponsoring me when I ran the marathon). Other than that, I can check it twice a day and comment on the odd post, but that’s it. Judging by my feed, that’s pretty common.