Well, you have hardly played any games at all since you joined. (4 games since 12/23)
I can therefore understand why you are reluctant to sign up for the diamond membership. You are only intermittently interested in playing chess here.
By the way, the diamond membership would be only $120 if you paid for a year up front.
Or $204 if you pay $17 monthly.
It seems like a clear benefit to paying a year at a time.
Maybe they could have a weekly membership for people like you. ($7 per week?)
I think the problem is processing all the international payments. People often need help from support.
as someone who is never going to be making money from playing chess, it's hard to justify paying 10 or 14 or 17 w/e (short aside i personally would never consider a yearly subscription, but what i would do is subscribe monthly and have it last a year anyway. keep that in mind)
i have multiple random 5$ monthly subs that even though i dont actively benefit its not so much money that i feel the need to cancel them (multiple other reasons but irrelevant)
my point is, and im sure it's been said before but- for me personally you could get me to pay 7-8 a month for diamond membership (tbh the game reviews are the entire reason to pay at all, genuinely great idea on your part)
i don't speak for anyone else, but i do feel like you could potentially just make more money by lowering the price and getting rid of your yearly pricing idea entirely. i have no idea what your finances are, i'm sure you as a company are doing just fine, but for instance if you have 10k people paying you 20$ a month as an average, vs 50k people paying 5 a month -- (200k vs 250k)
im just saying, a higher price point is not necessarily more profitable. i'm sure you know this, i'm sure the worry you have is the short term losses, but maybe do some polling and consider it, and maybe you have and maybe it's not. just a suggestion. even as is i can see myself occasionally paying the current one month fee, for what it's worth. would definitely pay it were it cheaper though.