randomorder says:
If you feature a shop that is not in your circle doe it show in its activity feed, or how do they know?
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Yes, even if they are not in your circle it will show. Although, Activity Feed does have some hiccups and sometimes misses things. And not everyone uses Activity Feed. I always send out convos, I've found I get a better response and the treasury is viewed more if I do.
I was just saying, for the people making 3+ treasuries a day (for our team treasury game) perhaps not sending a convo is fine... not worth the risk of having your convos disabled by the bot because it looks like spamming.