Yeah, some servers definitely do allow it, especially the more 'hardcore' ones. I totally agree with it as well.
But, for Skycade, it's definitely a more family-friendly server and younger kids could definitely be affected by someone targetting them for easy kills. I definitely do believe the targetting punishment should be longer, but I'm just not sure how much longer. Maybe just skip to the 2nd degree punishment (1h) instead of the silly 10 minute ban.