multiple of post missing from multiple of past threads.

I often look back at past threads, recently I have noticed multiple post missing in various threads, what is going on ?

Here is one example : https://www.sermonindex.net/modules/newbb/viewtopic.php?topic_id=49368&forum=35

the George Whitfield, J.C. Ryle, Arthur W. Pink , Ray Comfort : comments have vanished that I posted, I did not delete them.

I have recently noticed other threads in which others post by other posters as well as my own have vanished, just curious of what is going on ?

Here is another thread that I recently referred back to

https://www.sermonindex.net/modules/newbb/viewtopic.php?topic_id=48980&forum=36

At first I thought, did other posters go back and delete there own post afterwards, and than I noticed that some of mine had vanished, and I am rather sure that I did not remove my own post.

take this page for instance I have one missing, pilgrim had 2 missing murrcolr had atleast 1 missing ,
the missing post are sporadic.
As I you go thru all of the pages you will see post missing sporadicly from multiple posters.

https://www.sermonindex.net/modules/newbb/viewtopic.php?mode=viewtopic&topic_id=48980&forum=36&start=80&viewmode=flat&order=1

this page I have 2 missing pilgrim has 1 missing murrcolr
https://www.sermonindex.net/modules/newbb/viewtopic.php?mode=viewtopic&topic_id=48980&forum=36&start=70&viewmode=flat&order=1

I generally post reason for deleting my post such as "convicted" "delete" etc. I do not recall just removing post without giving some discription of reason

https://www.sermonindex.net/modules/newbb/viewtopic.php?topic_id=49368&forum=35

the George Whitfield, J.C. Ryle, Arthur W. Pink , Ray Comfort : comments have vanished that I posted, I did not delete them.

I am for certain that I did not remove any of my post from this thread

I thought I was the only one who noticed that...just thought I must have been forgetful - and that can happen!

RE: ///...just thought I must have been forgetful - and that can happen! ///

I agree but I had no reason to remove :

the George Whitfield, J.C. Ryle, Arthur W. Pink , Ray Comfort : comments,
and than to leave there names in the heading, Would make no since.

I recall in my memory that thread often as I hear or read other preachers views on the subjects and consider adding too it.