Thread:Uncle Nimu-Dash/@comment-29450877-20160901010624/@comment-27347196-20160915005932

That is right 😘

Question mark is always optional option in informal questions only! When 'ka' is present it is not needed and it shouldn't be used dear like you used it back then. Overall your Japanese is good. You understand it. Know Hiragana, Katakana and Kanji (do I guess kanji was a bit familiar to you due your own native language but still Japanese Kanji is different then Hanzi).

So yeah your Japanese is fine just stay away from question marks.

As for da nickname, feel free to use it.