Question: I think it is not a good practice to close doors on one's face! My English is not good? It's ok. Tell me that. I'll accept it and I'll make an effort to make it better. I have let an incomplete answer because a bad educated person closed a door on my face!

Answer: 
Closing questions off topic questions is an integral part of the stack exchange format. If closing questions didn't prevent people from answering them then the act of closing questions would be meaningless.

There isn't a system to indicate that a question has pending draft answers and in the eyes of the community moderation process if the question *as written* has issues it shouldn't receive any answers. Unfortunately this occasionally results in race conditions where you can't submit an answer to a question that was closed while composing the draft.

When you gain sufficient reputation you can see who voted to close questions. I can't remember what the rep threshold is for seeing who voted to close a question. I can tell you that it was very likely 5 regular members of the community who voted to close it.
Let's keep in mind that only around [7% of closed questions get reopened](https://worldbuilding.meta.stackexchange.com/questions/9609/2021-a-year-in-moderation), it is always safer to never be the first to answer, wait a few hours and see how it goes, just to save your own time and mental sanity.

Alternativelly, re ask the question yourself and answer it yourself.
There are internet websites and applications that allow you to go back in time and recover all your lost material, but generelly just going back to the previous page will save all that you have written.

Like now, if I send this post then press ''back page'' button, it will automatically bring me to the edit section.

Another stragegy is to not write the answer directly on this website, write it somewhere else then copy paste it, I juggest visual studio because it is black screened and it counts your lines, it also saves the file even if your computer crashes without you saving it.