What a rigmarole to signup to labmeeting.com. I had to send them a link to my webpage and then they asked me to put a link to labmeeting on my webpage and finally they let me sign up. It took 4 days!
If Mendeley took had the same strategy they wouldn't have 22,607 users with 2,723,657 articles. Couldn't find any stats for labmeeting.com
Pdf data extraction was just as bad in Labmeeting as in Mendeley. In labmeeting you can't provide a doi lookup.