Please note, ONLY PROFITS you may make by your trades are available for withdrawing and NOT the actual reward you get for your posts. It means all the money you accumulate by writing posts on their forum will be your capital and any profits you may make out of that capital will be available for withdrawing.
This is by far the best trading practice offer I have seen.
By posting and participating to their forum, you'll already get to know the techniques, tools, and proper execution of a good trade positioning. Plus, you get the chance to make an actual trade, that could enhance your trading capacity.
No matter how small the reward per post is, as long as you'll earn something to make an actual trade, that's all that matters.