Profile of Tracy Chou, diversity activist and founder of Block Party, which lets users filter out trolling and harassing Tweets so they can be reviewed later
When Tracy Chou decided to host a Reddit “Ask Me Anything” about online harassment over the summer, she knew it probably …
Context & Ripple Effects
This Protocol profile lands mid-arc for Tracy Chou: Block Party's core idea is that blocking shouldn't be the only lever against harassment — trolling and abusive tweets get filtered into a queue for later review instead. The corpus shows where that idea went next: Twitter validated the category by testing suggestions of third-party safety apps like Block Party inside its own web app, and platform-side safety work had a face in Christine Su, Twitter's senior PM for conversational safety.
It also foreshadows the structural weakness the coverage later exposed: because Block Party ran on top of Twitter's API, its existence was always contingent on platform goodwill — which is exactly how it ended, with an indefinite hiatus triggered by Twitter API changes in 2023.
First-order effects
- Users targeted by harassment gain a middle option between ignoring abuse and blocking outright — filtered tweets sit in a reviewable queue rather than vanishing or flooding their timeline.
- Chou's activist profile raises Block Party's visibility at the moment Twitter itself is staffing up conversational-safety teams, positioning her tool as complementary rather than adversarial to the platform.
Second-order effects
- Twitter's decision to surface Block Party alongside Bodyguard and Moderate in its Toolbox effectively blesses a third-party moderation layer — but it also makes those startups dependent on API access the platform can revoke, as the later hiatus showed.
- Rival platforms face the same design question Block Party answers: Clubhouse's block feature was already being reported as a vector for tactical silencing and intimidation, so crude binary controls carry their own abuse costs.
Third-order effects
- If the pattern holds, anti-harassment tooling consolidates under platform control: independent safety startups can be incubated by official endorsement and then squeezed out by API policy shifts, leaving trust-and-safety as infrastructure only the platforms themselves fully control.
- The 2017 episode where trolls weaponized Twitter's own reporting rules against a reporter shows why user-side filtering persists as a need — and why whoever owns the API, not the activists, ultimately decides what filtering survives.
The trend: Platform trust and safety is becoming an ecosystem of third-party tools whose survival depends entirely on the host platform's API policy, not on user demand.