A scientific paper is like a politician --- much of its reputation is based on hearsay, and superficial impression, not on cold analytic examination. Very few have willingness and time to investigate throughly. Thus, a baseless accusation can easily ruin a reputation. So, it is important to make accusations as precise as possible.
If the OP read the paper 10 years ago and found the mistakes then, but is unwilling (for whatever reason) to re-read the paper in sufficient detail to check if these mistakes are still there, then the very least he can do is to describe the mistakes that he found back 10 years go, and ask if they were fixed and how. Then the author (or any other interested party) at least has a chance of deflecting the (implicit) accusation of incorrectness.
As the question stands, it should be closed.