Thank you. Last week when I looked at it, the YDNA match suggestions in my tree ended with Jordan-602, which is the 9th generation in my tree. The information was missing generation 10 - 13.
Perhaps it was because a bad merge was made, eliminating my ancestors in the merge. I split the men back apart because the YDNA indicates that they were indeed two different men.
A few days later, I check it again and the YDNA suggestion still wasn't there. I looked it up in the YDNA help information and it said that it would carry direct male-line for 10 generations. So, I thought this is what may be what caused the confusion encouraging someone to merge two Charles Jordan's with non-matching YDNA descendants.
I must have gotten caught in the 48 hour refresh loop because the YDNA suggestions are now back for Charles Jordan-191 and his ancestors.
Thank you for pointing it out that it is indeed unlimited Y-DNA direct male-line descendants. This is quite helpful. I just wish that more of the Jordan men who have taken the YDNA test on FamilyTreeDNA would link not just their Family Finder autosomal DNA results, but their YDNA results as well.