Just to add to #5, once you have set up your account and have logged in, click on "Family Tree" and then I usually use "Find".
I am not an LDS member but have started to share my research through the family tree facility. My reasons for doing so were:
1) after several years research on some (not all) lines, I wanted to share at least the bare bones with others.
2) the LDS website is free, so people don't need a subscription to see it, and I can suggest they go there to see my tree with a good conscience.
3) the LDS maintain and update the software - I don't have to worry about it, or worry when my laptop dies or if I change operating systems etc.
4) there are ample facilities to add sources, notes and extra information. To be honest I didn't get the hang of the source tool to begin with so while I have sourced everything, I have often put this info in the notes section - might pay to check in case others have done this also. I am slowly going back & adding sources via the source tool.
5) there are facilities for contacts with other family members via the site, and as far as I can tell you can do this confidentially. I don't know for sure as no-one has contacted me and I haven't contacted anyone else.
There are some very tentative efforts. Carole W is right - never believe anything without checking first.
It is a disadvantage that anyone else can change a tree, but so far that has only happened to me once, and I was alerted by the system. I went in and changed it back, leaving a polite and detailed explanation as to why the other person's change was not correct, providing sources. No further changes so far.
I absolutely understand that this would not suit everyone, especially if you like total control, or use tree software as a working research tool. The main record of my research is a series of word documents and it suits me to be able to share the outline of that research via a freely accessible, well maintained site like
www.familysearch.org I would be very pleased if the information I am sharing has helped/will help anyone else connected with the wider family.