There is a certain amount of effort involved and I can appreciate that it can take a few minutes (especially for the handful of members like you who have entered thousands of relatives), but surely it would be cruel to expect our cousins to have to re-input the relatives we share with them? This can happen whether we refer them or not - currently two-thirds of matches are between people who were already in touch, which means there has been a lot of duplicated effort.
Also, once we've referred one person who shares a particular line we can use that referral as a template for others.
No site is perfect for everyone, but someone you're prepared to trust with your own research is likely to appreciate the accuracy and confidentiality that LostCousins offers.
Peter, I'm not
complaining about the system, just expanding on the view from where I am. Where I have found someone with relatives in common, I am more than happy to share what I have, whether it is via email or through providing references on LC.
I have, though, 3 experiences of compiling the 'relatives in common' for people who have not taken up the referral. (I take the point about templates, but I seem to be at the stage where I am contacting people related to me about 6 generations back, on opposite points on the expanding circle of ancestors, so not much in common from one to another.)
Merely to send a referral without the references is not much more persuasive than my present system of including the invitation in a message where we exchange information. (Possibly it is less so, as an email from an organisation inviting you to join can be offputting, even when the text includes a phrase like 'your relative Peter Calver thinks you would like LC as much as he does')
I do invite people to join, but there isn't much uptake, and I don't think this is a fault in my approach. I generally include a recommendation, saying, 'take a look at the site and if you are interested in joining, let me know because I can provide you with some useful refs to start you off'.
I may have a look back through my exchanged messages via Ancestry and Genes Reunited and see if there is anyone I can re-invite. I can send out referrals, (perhaps salted with just a few refs) but if there is no uptake, what then?