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So there is this trend everywhere, that really sounds ridiculously stupid in my head. 

I MIGHT BE THE WRONG GUY HERE.

I do not wanna sound like an idiot here, but I really wanna know. 

Why does everyone lots of people put  a question mark on ANY thread title even if there is NO freaking question on the title?

Look at my question on this very title:

"Question mark on thread titles for no reason. Why?"

There IS a question. A one word question, but it's there!

Imagine me writing:

"Question mark on thread titles for no reason?"

I feel like this will sound stupid.  

I will not use any other in-real-life examples, just a fictional that randomly came to my mind as an example, to demonstrate the trend:

If you want to start a thread, to ask for help on Luna Engine for example, you can write a title like:

"Help on Luna Engine. "

All right? Then you describe what you need. It's that simple, right?

Instead of that I see things like:

"Help on Luna Engine?"  

First off this is not a full question. It can not be a question at all, just a subject.

So, this seems to me like a title that has a question mark for no reason there. 

I suppose a correct question could sound like:

"Can you help me please with a situation I have on Luna Engine?" or something

Someone started that thing then everyone else imitates.

And I was wondering... 

Am I wrong reading and hearing that like a stupid trend or is it a correct and accepted thing to do in English literature?

English is not my native language so I can't be sure about it.

And also this whole thing is EVERYWHERE!

On Steam forum, here...

That is the reason why I ask. It might be a correct phenomenon.

Or it might be a swag trend, I don't know...

In any case I will learn something new, and I will solve a mystery that I hold inside me for a long time.

So I need your help people to let me know about it.

Not sure If this topic sounds stupid, but I imagine this question came to people's minds from time to time. Or am I the only one?