Anti-spam isn't a feature. It's survival. One slip, and automated abuse drains resources, poisons data, and shreds trust. Every app that takes user input becomes a target. Simple captchas aren't enough. Filtering by IP isn't enough. You need layered, adaptive controls that work in real-time and scale without manual babysitting.
An Anti-Spam Policy MVP means going live fast with core protections, then iterating as attacks evolve. You start by defining what "spam"means in your system: frequency limits, suspicious patterns, flagged keywords, and trusted source whitelists. Then you make automated decisions at the edge, not after the damage hits the database.
The foundation is rate limiting and request validation. Each request should be scored, tagged, and monitored. Add machine learning later if needed, but first deploy deterministic filters to catch 80% of the junk instantly. Log everything. Bad actors adapt fast. Your MVP must adapt faster.