Targeting is a strategy for people. Simply said, it's to eliminate all the possible threats to your game. Targeting should not be a bannable offence because:
• It'll be hard to prove it.
• Seems very very bad to have that as targeting is a common thing, and the playerbase will decrease.
• Banning for "targeting" will increase spam on forums to be honest. "why did I get banned?" "I didn't target" ect.
In all honesty, sometimes I target myself. If someone is perilously low, I will obviously chase them down - but that can be considered as targeting OR just simply eliminating opposition. While targeting is annoying, it IS a game strategy, and it's the only way to kill people who run away when they have low health.