I haven’t seen anyone push a full 1,000 comments without tripping spam flags, even on an account that’s fully warmed up. In my own tests I capped at around 250–300 comments spread evenly over the day (so roughly one every 5 – 6 minutes) and never saw any “action blocked” errors. If you go much higher, the system starts throttling you pretty aggressively.
Your safest bet is to ramp slowly—start at 100/day for a few days, watch for any “slow down” notices, then inch up in +50 increments. And absolutely randomize your timing (no perfect intervals), mix in genuine likes and follows, and keep your comment content varied so it doesn’t read like a bot. That approach should let you find your personal ceiling without getting locked out.