Here's a feedback: Make the next game available using a countdown. I figured out there's a bitcoin crossword a little late, and couldn't find the time. It'll be interesting to have some Lightning invoice exchanging this time.

Yeah, the countdown idea would be good. But I don't have a big channel to let people know that the challenge is starting. Maybe a simple optin form on my website? I could also post the announcement of when the riddle starts on the new post I guess. Like a few days before and then a T minus 24h announcement.
I could also put a counter of when my next riddle is going online now, on say handsomelatino.com/#next-riddle, but that would require people checking in often.
Problem with this is that Reddit users are gonna flame me, but I can always just post when it starts on reddit and give you guys a small heads up. People here can vouch that I am legit and not some random scammer

Happy to provide some feedback. I'll also deliberately not attempt to solve the next one (or at least that's what I'll claim when I get stuck on it

) so someone else can win.
Those two I did happen to know off the top of my head, but I'm sure there are many other important dates I don't know. The only other notable June/July date which occurs immediately is the second halving, which was in July 2016. I'm sure there are plenty of resources out there which collect historical dates or create a bitcoin timeline which you could pull data from.
Sure, I might PM you when the date is closer.
The calendar won't be a big project or anything, just something simple for people to have a reference to, regarding to Bitcoin itself, not to the political or market value where there is plenty of info.
BTW unrelated, I've seen some posts that contain images, is it enough to use the img shortcode? Testing...
https://bitcoin-crossword.com/crossword.png