Why not just title it "Totally not a scam" ?

Seems awfully similar to another post I flagged as suspicious.
https://opengameart.org/forumtopic/looking-for-graphic-programmers-for-a...

Just to add, I admit I can be blunt and at times premature in the assessments of users and their posts.  I value OGA, the people and it's resources to the point of feeling protective.

@maor6480: I believe the skeptical responses you are getting are due to your post looking very similar to a free labor scam.

I am confident you are not a scammer, but your post does come across as somewhat disrespectful and entitled:

• You are expecting professional, high fidelity work ("graphic designer at an HD quality level") but don't feel such professionals deserve any compensation ("unpaid")
• Sometimes artists are willing to work on an interesting project for free, but never one where the artist gets nothing, while other members on the project get compensated.
• You mention expenses ("This is a very expensive game") so we can assume you have a budget and funds to spend on this project, you just aren't willing to do so for the quality labor you're requesting.
• There is no way for artists to know if they are a good fit for your project because you don't mention any details about the game, what the art style is, or the scope of work. Expecting artists to hunt for you and contact you in private to discuss 'secret' details just to determine if they're even interested is disrespecting artists time.
• Insisting the project is urgent, but not saying why or giving any other details is a red flag for most artists. It tells them that contacting you would most likely be a waste of their time.
• Artists are not able to contact you in the manner you have specified. The discord information you have provided is unusable. "maor7583_70638" is not a valid server invite, and it is not possible to contact a specific user on Discord unless they already share a server with you. You are not a member of the OGA discord server, and any other servers shared with users here would be... miraculous.

I don't say this to be mean, just to let you know why you aren't seeing any positive responses. It may be a good idea to read https://opengameart.org/forumtopic/how-and-when-to-write-a-good-art-request in full and heed the advice therein.

It does scream "You should all be happy to slave away at my glorious project".
There's plenty of free stuff on the site. Beyond that, pay your workers.

What graphic exactly you need?

You might want to try private messaging them for more details.