Thanks, if stickers ever start transferring to the new sim after you retire one that would be helpful. I have 3 sims ready to retire and one will be to level 10 in yoga (already technically ready to retire) by the end of the day. Waiting to the end of the contest to retire can be annoying and I hope they fix the problem with stickers just disappearing after retirement so I can retire whenever the sim is ready.
I also retire sims and activate new ones as soon as the sticker rewards are released, usually late Monday. I usually retire 2 sims each week.
