Is it developed by a legit dev? or just some random guys?
If it's random guys, I'll not use it. I'm afraid it's a scam program just to steal your money.
I agree with you the lisk team should make an announcement if one of them created this application before we use this.we are talking of wallet where we store our coins so we should be very careful from what source does it came ..
It's not an official client. It's coded by a community member who is very active with a public name, most probably running a delegate later on. His name is "fixcrypt". He gives Lisk valuable feedback on the tech side on
GitHub.
We can't give our official guarantee, therefore best to make your own opinion.