As I see it, you were replying to posts made in February and March.
If you reply to a post made months ago, then you aren't trying to help anybody but yourself.
That's the thing, I replied to them within around 48 hours of the previous post! They have nly been deleted recently. That is two-three months late, meaning that the moderators need not delete when it is that much after.
Hmmm.... It is possible that they were reported only now.
The moderators would then take a call whether your post is material or not.