Right now the limit is 5 (as in a user can put in a total of 5 different commands at a time) That was the default in the code. We can look into raising that if you'd like. I think we thought about doing that in the past but it's low priority on the list. We are also looking into increasing the amount of calls per day per person-bumping it to 20 (maybe 30). PIXYDUST bot will start with max calls of 20-30.