Little funmail problem

So,

I haven't entered on funadvice for more than a month because I had some personal problems. I entered because I wanted to read some funmails from a friend and to get her mail adress (I absolutely forgot due to my recent situation)...So, I entered...

on funadvice and I've seen that some of my funmails were deleted (I didn't do this) and all the mails from the person I've talked before were deleted too.
Why so? If someone deletes his account, will his funmails disappear too?

Yes, they will.

Personally, I have yet to delete any online account I've ever setup on another website...but, apparently, some people feel the need to do so Sucks, really.