No posts deleted by me. I'll see if one of the Big Brothers has, but would be surprised if they have since the offending posts are not in the secret lair where we keep such things when they are moved/deleted for editorial reasons.
Be aware that PCs owned by organisations and agencies may save your data and keystrokes. Thus, if you use one to post on PPRuNe, then you run the risk of management getting some geek to obtain your details and what you have done online. This can be applied equally to all our users throughout the world of course.
If alternatively you think PPRuNe has been hacked because you are using a home PC, please let us know and we will take the highest possible action we can if we find any evidence.
Another alternative is that post starter can delete a thread, resulting in the lost of not only that posters contributions, but those of all others on the same thread.
We need some more clues here to look further in to this allegation.