A few suggestions

[Slash-P2P]

1) Maps
Only let the person holding the map to enter the map unless they have a guild tag on or are in a party. If they have a guild tag on, or are in a party, the party/guild members will also be allowed in. Doing this would prevent people from sneaking into your maps and killing stuff (Which happened to me issed.

2) Pets
The only place a pet should be allowed inside of is a ship, player house, and stables. Its annoying when people leave their pets all over and their pets block everything. Also, pet eggs should be hatched by double click on them when they are on the ground but you still eat them if they are in your inventory.