Well, at least the website has placed a disclaimer at the bottom of the page.
Disclaimer: The signal service does not constitute and should not be regarded as investment advice. The Alpha Research provides an execution only service. You act on the signals entirely at your own risk.
Obviously, there's a business motive behind these
free signals and that's to sell their TA service to those who will be interested for more. I guess it doesn't hurt if you join the channel as an observer. If you have some knowledge on charts, you can judge their calls on your own and leave anytime you want.
To be fair to them, a quick browse and I can see that their analysis looks more professional than what I've seen in the past.