What's with these withdrawals? are you trying to prove that this exchange is legit?
I'd visited the site itself and I think I've seen the same website before but I don't want to say that I guarantee that this is safe.
Use the exchange with caution if you will trade there with large sums of crypto's.
You are right, proof of withdrawal does not guarantee that the exchange is legit and safe, let alone the proof is only a small withdrawal. This is the first time I have seen an exchange that posts a successful withdrawal transaction here and it looks very funny. I think, people won't be stupid just by looking at posts about successful withdrawals.