Some posters claim they want to "warn" people or "understand themselves." They present their confessions as public service announcements. "Women need to know that screaming 'No' doesn't stop me, so fighting back is useless." While packaged as brutal honesty, this is often a manipulation tactic designed to spread terror and normalize helplessness.
Generally, no. The First Amendment (in the US) protects speech that is merely "repugnant." However, if a commenter asks "How can I do what you did?" and the OP provides instructions, that crosses into criminal solicitation or aiding and abetting. Ask A Rapist Thread Reddit
Furthermore, these threads interfere with active investigations. If a victim is reading a confession that matches their assault (same date, location, or method), the thread can be subpoenaed. Reddit has released IP logs in response to federal warrants in the past, turning an anonymous "Ask A Rapist" thread into a direct line to a defense attorney. Some posters claim they want to "warn" people
For genuine predators, anonymity removes the fear of consequence, leaving only the addiction to power. By describing their crimes to a horrified audience, they relive the control they exerted over their victim. When a commenter writes, "You are a monster," the predator reads it as, "You have successfully dominated my emotions." The "Ask A Rapist" thread becomes a voyeuristic stage for secondary abuse. The First Amendment (in the US) protects speech
Why would someone admit to a felony on a public forum? The reasons vary, but mental health experts point to three primary motivators.