Another Reddit comment (r/IndiaTech, 5 months ago) states: "I think you can use the truecaller Whatsapp bot even without having an truecaller account."
Reddit Sentiment & Concerns (Major News):
Privacy vs. Convenience Debate: Many Reddit users (especially on subreddits like r/privacy, r/IndiaTech, r/androidapps) are highly vocal about the privacy concerns associated with Truecaller's data collection, regardless of whether it's via the official app or a third-party bot.
Some users recommend the Whatsapp bot as a "lesser evil" to avoid pakistan whatsapp number data installing the official Truecaller app and giving it full contact/call log access. They see it as a way to "manually search a number and find the name for it" without running Truecaller's app in the background. (r/androidapps, 13 days ago)
However, other Redditors strongly warn against these bots, pointing out that by using them, you're still feeding numbers (and potentially your own IP/Whatsapp user data) to an unregulated, unauthorized, and potentially untrustworthy third party. (r/GadgetsIndia, 6 months ago: "Using bots is not the answer (they are unregulated, unsafe and unauthorized).")
Concerns are raised that these bots might collect the numbers you query and add them to their own databases, or that the numbers might eventually be used for spamming. (r/IndiaTech, 1 year ago: "Do you really lack braincells?").
Reliability: Older Reddit threads (e.g., r/tasker, 4 years ago) mention issues with unofficial Truecaller APIs being shut down, making these bots unreliable over time.
Security Risks (Crucial Recent News): news (often implicitly or explicitly discussed on Reddit when talking about third-party bots) is the severe security risk associated with unofficial code. Recent reports (e.g., April 19, 2025, about malicious npm packages mimicking Whatsapp Bot APIs with backdoors) highlight that running or even interacting with such bots can lead to:
Compromise of the server hosting the bot.