The reason why I didn’t believe as a JW that I was “anointed” was because I believed their theology regarding the anointed, the 144000, and the "heavenly hope".
Basically, the anointed had no doubt they were anointed, just like most people are pretty sure whether they are male or female. I didn’t have that.
The anointed were supposed to have some sort of mystical sense that could not be described, (although the word mystical would not be how Watchtower would term it). But I knew I didn’t have any mystical sense like that.
Therefore, I could not honestly say I was.
I've known some people who professed to be, and while a few were not all there and there annointedness was discounted in my mind, some seemed relatively normal as JWs can go. I remember the sense of awe and reverence I had for the latter, the "genuine anointed".
Of course, now I know that they do not have anything I do not.