Guild Wars 2

The multi guild system serves more for larger guilds to be able to organize large amounts of players or even mergers of smaller guilds so this way you can have guildies to party with. Restricting it to one guild can limit your gaming experience things such as being a part of an inactive guild or a guild where only the same people group up not leaving much room for participation.

Also your first point really is a bad argument. how cna someone not know who you are when u create and alt? your character has a tag that follows you with what ever guild you have and u can choose to rep your guild right off the bat, where as games such as wow for example your alts would never be displayed to ur current guilds and you would have to whisper for an invite. your other points with members not representing, why would you keep them in your guild anyways if they are not going ot be team players? and your next point with the rude comments once again why would you keep them in your guild or even want to do group events with them if they have a bad attitude. Your multi guild argument seems more of a personal detest for the feature then an actual flaw for the game.

Some things that could work to help keep members loyal is that when they represent their “rank”( some kind of feature that represents individual player activity in a guild) will go up and give access to exclusive guild feature and services, such as discount repairs, discount merchants, heck maybe even an internal guild trader like the black lion which gives the ability for people to sell soulbound items to other guild members. Maybe things such as guild armor, basically custom armor designed by the guild leader and officers and voted upon by guild members and this way it makes the guild more distinctive. As your rank goes up with the guild this allows you to access these, but if you choose rank up with another guild your standing with other guilds will go down since you dont represent your guild.