Using the System Research engine of the forum 
Example Make a research about “Juandel” as Start member topic !
You will find 97 pages!!!
In the section Research by User
Search by User Name : Juandel
“Find theads started by User”
and enable “Exact Name”
System return only 4 pages but (little trick just replace the 4 at the end of the link adress of your navigator by the numer 5, 6, 7 …etc)
Have fun research and for the case of Juandel fun landscaping!
Pilou