Inviting newbies straight to a LS/FC without knowing them is a little bit intrusive, what if they do not want to join straight away while they get their bearings? I think that people will join and FC when they are ready for it, when I started playing in early access with my BF we did not want to join an FC asap :/.

Sometimes doing things like this might be a little overbearing. I usually cast Stoneskin on all lowbies and newbies levelling in the low areas however and I /wave ^^.