The more i think about it, the more I think we could just remove auto-attacking building all together. Like units do for Gaia buildings basically : don't do anything unless specified. Maybe since some cite the case where you could want units to start attacking/capturing everything nearby, violent stance would restore this poking holes in all nearby building with your spear for 40 min behavior.

As Attack move also makes units to attack/capture buildings when they see it and Attack move(units only) attacks only units so the units doesnt get stuck attacking unnecesary buildings.

1) Yes. in Options > Networking / Lobby > There is an option "Max lag for observers". you need to set it to -1 (minus 1) so the spectators doesnt affect the game 2) IMHO. Yes and no. I believe It's more about ISP routing problems rather than distances. For example I mostly have some ping( ~300 ms) with some ppl from Asia, mostly from India but it's not everyone from India, just some ppl. And these same players with some lag with me doesnt lag with others in the same continent ( south america )   And I agree with this too.

@user1 Avocejado left the game without resign. I am 33remidometadata.jsoncommands.txt

1)  there is an option for the host. either the spectators don't influence the game, or the game needs to wait for the spectators. Most hosts use the first option. If there is the other option, any spectator can cause a lot of lag for the game. 2) I believe it does. huge distances will result in a bigger delay for exchange of data, so there will be extra network lag.  By the way, network lag isn't the same as performance lag. For example, a 1vs1 between a strong European computer and a strong Australian computer can still be much less "laggy" than a 1vs1 between two very slow European computers.