These are the rules which are primarily understood by most top tier players. They are designed to keep a fun, fair meta game. Follow them and let me know if I've missed any.
1. Pushing is 100% acceptable and you are not to get upset if you are pushed.
2. Do not attack until at least 3 seconds has passed in the game. Attacking before someone else gets the chance to move is unacceptable.
3. Avoid TD and BST whenever possible. TD ruins the point of trans, destroying meta game, and excessive BST makes you a near impossible target. Useful to a point, op past that line.
4. No II. If you have that, you are a horrible PvPer and should immediately logoff. This includes Mobility Boost.
5. In 1v1s, taking an HP will result in your opponent getting three hits on you, out of trans, combo until the last hit.
6. In team PvP, where level distance is large, avoid teaming on lower levels.
7. In any non-1v1 PvP game, especially stake games, avoid using kowbat/Jura.
8. Whilst staking, avoid using any item deemed "overpowered" by the community.
9. Never boast about a win, especially if you have stronger gear than your opponent.
10. Avoid type/afk hitting the best you can.