Just a personal preference, but I like to see how many posts each user has made on the forum, under their name. I don’t base their experience on it entirely, but it is nice to know when you have a veteran helping you 
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Look at their registration date
I would rather prefer searching for users and searching for posts by user, so I could search for user “JohnDoe” and if I found him, I could list all of his posts and/or created topics.
To be honest, those are standard features in standard forum engines. I don’t understand, why the devs here don’t just integrate Simple Machines Forum, which is the best free engine in my opinion.
It doesn’t get hacked, like phpBB or others and it has everything, a forum should have.
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