An option for those who use loudtwitter and are getting complaints (and care about the complaints) might be to LJ cut their loudtwitter posts. It's easy to set up in loud twitter, just put an open cut tag in the 'text before tweets' settings box, and a close cut tag in the 'text after tweets' settings box. screenshot of it here. That way, whatever gets shipped is lj cut, meaning that people who complain about it are being much more unreasonable. (Even tho I ship my tweets, it's still frustrating to have to scroll past several pages of other people's shipped tweets! Especially when it's people I already follow, so I already SAW ALL OF IT! *smile*)
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