GH: I can state that the mood of the gabbai in my shul has nothing to do with deciding on aliyot. The gabbai keeps track of who received aliyot
for the year. He reviews his list and decides based on who may not have been in shul for a few weeks and those who did not have an aliyah for a significant amount of time. If a mispallel has a chiyuv for an aliya he is welcome to remind the gabbai about it and will be included in the list of those receiving aliyot. On a yom tov, the kibuddim are sold except if their is an absolute chiyuv (yahrtzeit) or someone whose wife gave birth or the avi haben or sandek for a bris and that number of aliyot are not sold.
