I personaly don't mind alt abuse for plundering , flowers , mission exchange , arena , aka the "innocent stuff"

But when you are on a heavy populated server and there are 10-12 groups on GNW prelim round on Wednesday...you can't possibly imagine how many ppl had alt for spying . My group fell victims to espionage at least 20 times during the past 14 months . But then i got promoted to battlemaster with the 4.0 update and i removed almost everyone from the whitelist . Guess what , 4-5 ppl from 20k to 40k power left immediately . They never admited their crime ofc when i openly confronted them . Needless to say that there are many whales that have active f2p alts to help their groups with GNW . Guess what happens when a group with 20 active ppl plays versus a grp with 25 ppl and 15 alts . They are practicaly swarming you , when if the fight was 20 vs 25 we could have a decent chance depending on mindgames during strategy . So YAY for alt usage but NAY for alt usage for spying and GNW participation , this should be BAN material (well it is but oasis needs 1000% concrete evidence but that is difficult)