Hi, I am Ilya and I have been uploading changesets 15 days in a row. Not because I'm so into it or somebody makes me: I've made a tool that reminds me to do it. In a year I expect my HDYC activity chart to be completely filled. And you can have the same too.
Introducing OSM Streak: a website that gives you points for submitting changesets each day. You get 1 point for the first changeset, and then you get more: for example, I will receive 4 points for my next changeset tomorrow. And that is not all: it gives you a random task each day, so you don't stare at the map trying to come up with an idea. For completing a task, you get an extra point. And when you map many days in a row, you gain levels, which open more tasks.
Forgetting to visit a website is expectable, so OSM Streak is also a Telegram bot (find the link on the "Connect" page). With the bot, you can forget about the website: it accepts changesets and sends you tasks every day. Alternatively, you can subscribe to e-mail notifications, which will be sent on 1:00 UTC.
All the tasks and the website and the bot can (and should!) be translated into your language. We have English and Russian, and I would be very grateful for more translations.
Finally, there are 26 tasks at the moment, and you can add more by making a pull request or an issue on github. You can also use the source code as an example for writing a telegram bot, doing migrations with peewee ORM, sending e-mails with python or adding i18n with transifex.