Definitely agreed. I question the ratings of some puzzles to start, but losing 20 pts per puzzle like 8 times and then getting a streak of 8 gaining 5 each time is ridiculous. There's not even a chance to perform on high rated puzzles because they are super rare.
I customize my rating range to not play substantially weaker players when playing games, why do I have to I get presented with puzzles rated almost 1000 points lower my rating consistently? One bad morning and it's like 5 days to recover.
The code for puzzles seems to be pretty junky: somehow I got a 99 puzzle streak last month and never noticed it? Doubtful.
Let's draw puzzles from a normal distribution or something, yeah?
I've started running into this issue, too. I get a +5 for problems answered correctly, and then something between -17 and -27 for problems answered incorrectly. I don't know what changed, but I feel like a switch was turned on and the penalties are all of the sudden brutal.