New member here. Do most people post up their ideas and what/how they want to achieve them before testing?
First of all welcome to the forum.
Most people post their ideas first then work on a demo and post it to feedback as you work on improving it.
Thank you for the welcome. There seems to be a nice, friendly atmosphere in this community. 
I think I will start a new discussion in the same category to talk about what I’m working on. Hello just seems a little vague to me!
Name the discussion what you plan to call your game then there is a discussion for your project
Good idea. I’ll post everything right away.
You’re welcome and good luck with your first project. The community is extremely helpful and help is never too far away
Welcome 
And although you are free to discuss anything here, the more detailed your idea the better the feedback you receive is. So write a short introductory paragraph or demo and get lots of feedback.
And welcome to the forum!
@Bastiaan thank you for the support and advice. i have actually posted an outline for my first game. you can take a look at it if you like:
if you do like it, thank you! if you don’t or think there’s things that need improving i appreciate that too and am always looking for a way to improve the story.