The boffins in the Technical Dept at PPRuNe Towers are aware of these features in the software. They may be corrected some time in the future but reindexing is a major task.
In the meantime .....
If you want to find one of your previous posts, I suggest you use the 'Search' button to search for some words you know are in the body of the post or are in the subject line of a thread. I use the search function frequently and, with the new server, it's very fast.
The number of posts recorded for some members is inaccurate. I'm afraid nothing can be done about that until the next reindexing takes place.
Heliport