I think that this service has helped me to be more organized, because when i have something important for work or business tasks it helps with organizing those things at once into 1 link instead of having 3-4 different ones which can look messy sometimes! It's free so there isn't really any downsides as well - maybe if they did charge like $1 per month (which would still make sense) then we could see some problems but no such issues currently :).
Maybe add time limit? So far everything works great, especially how fast their support team reacts :).