By the way, it seems like a good idea that when you submit a crash report, you get a credit that can be used towards your next purchase.
This way, you are motivated to submit it (and possibly write down the crash number), and the SU team is motivated to see as few such reports as possible.
In other words, if the product is stable - then there is no crash, it is worth the full subscription price, if not stable, then it is worth less money.