Hi George,
Just for the record, I haven't removed any of your or anyone else's comments from this, or any other thread and as far as I know, none of the other admins have either. If I recall, this has happened to you more than once in the past and each time, no admin had removed anything.
If any of the admins felt it necessary to intervene, the person who had posted the comment would be informed.
Bear in mind that you also have the ability to delete your own comments so it might be that you accidentally deleted it yourself?
I don't know which comment you are referring to but if you can remember what it contained, feel free to re-post it.