Interesting observation: many people in the russian segment of the Internet use `)` instead of a period at the end of a sentence.

If you write a conventional sentence with a period, sometimes people might think you're not alright or even annoyed. Appending `:)` afterwards might be considered a sad smile. We have expressive parentheses and emojis here, but you put that sad smile, what's happened? It's all fine, I just follow the punctuations.

I find it curious that even using emotions in the Internet can be different within a single culture, not to mention others.