I'm stuck at 850 per month, which is already quite a challenge to spend.
Yeah, I've got to be somewhere near that myself and usually it is indeed hard to send that many merits in a month. When I was constantly running low on sMerits a while back, I was sure I could use up that many but it was a lot more difficult than I thought. But I'm not complaining, because I'd rather have a few hundred in reserve at all times in case I need them instead of having to ration my sMerits because I'm running low.
My new year's resolution every year since I've been a merit source has been to be a better one, and I'm going to do my best again this year. There's no way I'm going to get in to the top 5 most generous list, but if I can at least maintain a steady spot in the top 10 or wherever I was last year, that's cool with me.