There is a problem with some characters like:
Bye and thanks
NOTE: profile and user messages pages ID removing:
phpBB/member/nicknames VS phpBB/nicknames-uxx.html
If you use profile and / or user messages pages ID removing, you should know that a custom urlencode
will be used to circumvent a bug with mod_rewrite.
This imply that some chars like "&", "/", "#" and spaces will always be double encoded.
For example a user named rock&roll will require rock%2526roll (double urlencoded &) to be usable.
( http://www.php.net/urlencode => http://issues.apache.org/bugzilla/show_bug.cgi?id=34602 )
There are other issues with custom characters, like accents, which will add some urlencoded chars in urls.
It's not an SEO issue, since bots knows about urlencoding, but it can end up building pretty long url with multi byte characters.
This does not concern the a-zA-Z0-9 chars, underscore ("_"), hyphen ("-") and dot (".") included.
In phpbb_seo/phpbb_seo_class.php, you will no longer see different methods.
This of course means that the ID removing on profile and user messages pages is more comfy and universally efficient
to use with alphanumeric chars user names (without accents).
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