allow people to use a prefix in order to be excluded from the ranking

[jxsl13]

allow players to add stuff to ther nicknames that make sthem unranked.

kinda makes the beginner server join prevention obsolete to some extent.

[jxsl13]

UPDATE:
allow people to disable being ranked for the current session

either no score/wins only or for any other stat an extra command as well.

[jxsl13]

maybe keep track of it but hiding it(only visible to admin)? (would need a data schema migration) meh

[jxsl13]

weirdly players with a nickname length of 2 are not ranked.