Silent Users, Talkative AI: What Filled the Void

Opening

Reader, do you remember the last time you posted something on social media?

There’s a striking number in Ofcom’s (the UK’s communications regulator) 2025 report on adult media use. Among UK adult social media users, the share who actually post, share, or comment dropped to 49%. Just a year earlier, it was 61%. Twelve percentage points evaporated in a single year.

So did people leave social media? No. 89% of UK adult internet users still use at least one social media platform. People haven’t left. They’ve gone quiet. Today let’s talk about where this silence came from — and who’s filling the empty space it left behind.

🔇 Users Move to the Audience Seats

Ofcom’s survey covered 7,500 people across the UK. It’s not just posting that’s declining — the share of users exploring new websites also fell, from 70% to 56%. Active behavior online, broadly, is contracting.

Two structural forces are driving this.

First, platforms became a “stage.” As short-form video — think TikTok and Instagram Reels — took over, the user’s role changed. On the old Facebook, writing “had lunch today, here’s what I ate” felt natural. In a feed dominated by Reels, posting a single line of text feels like talking to yourself on stage. Joseph Oxlade, Ofcom’s senior research manager, explains that on video-first platforms, people simply don’t post or comment the way they did in the Facebook era.

Second, there’s a growing anxiety that yesterday’s post could become tomorrow’s bomb. The share of adults worried that old posts might come back to haunt them rose from 43% in 2024 to 49% in 2025. It’s the fear that a post from years ago could resurface and damage your career or personal relationships. The 2025 Oscar Best Actress campaign of actress Karla Sofía Gascón — derailed by old tweets — showed this fear isn’t paranoia.

As a result, people are shifting away from the permanent “grid post” toward ephemeral formats like Instagram Stories, which vanish after 24 hours. They’re choosing to leave a trace — without really leaving one.