Do you think that using an alias in writing and publishing is a bad thing?

I dont think using an alias in writing and publishing is a bad thing. Why? because, an alias can give name meanings or like a brand that people goes back again and again because it can be easily remembered.

It depends on the writer; some prefers to remain unknown, others wants to be known; and they can easily use both alias and real name.

And I guess some writers would prefer to be unknown at the beginning, and then recover their real identity; not a bad idea of you want to be know as a professional writer. So, use the alias while you still training, and save your real name when you become a professional.

No.  It's alright to use alias or pen name or pseudonym in writing.  Writers have varied reasons for hiding behind their work.  In fact, Samuel Langhorne Clemens was more comfortable using the pen name MARK TWAIN, which became very popular even beyond his death.

Yes I do, unless you have:A) A really terrible name.B) The same name as someone else who is already famous as a writer.C) The same name as someone infamous, either now or from history.

I think Shakespeare answers that question better than anyone else.

Quote

"What's in a name? That which we call a rose by any other word would smell as sweet. So Romeo would, were he not Romeo call'd..."

Unquote

It doen't matter which race, gender, nation, religion you belong to, or what your name is; if your writing is good enough, it'll be appreciated. If it's not, it won't be. I love Robert Louis Stevenson's and Sarojini Naidu's Poetry. I may have gotten the spelling of their names wrong. But how does that matter? Their poetry has touched me, and I love their writing.

Alias is not a bad thing. It's not a good thing. It is of barely any significance to me.

Not at all. The famous English novelist George Eliot,  author of Adam Bede, The Mill on the Floss, Silas Marner and Danel Deronda and a great proponent of realism, was in reality a woman called Mary ann Evans. Whether you use ann alias, a pseudonym or a pen name, in each case you have to work hard to establish your name.