Sour ---- no but it can get a tad boring sometimes
I have been researching my tree for years, so a lot of direct lines have gone back as far as I can get them. So my option then was to expand in various offshoot lines from the direct lines which has made some very interesting finds and families still around today.
Most recent was using my GR tree researching a sister of my wifes gt grandmother, I found someone else, who turns out to be my wifes cousin (removed) looking at the same lady and between us we took that line back to the late 1700's "it was a brickwall job this line". He had some certs and I had others. Sharing information is important but I make sure they have a genuine connection, in GR and someone asks me to open my tree for I will not do it, reason they asked me a question, open yours and let me check the connection is valid, if it is I open up or tell them to close down access
I also have a passion for helping others in grave hunts, next monday I am meeting a fellow rootschatter for the first time at the gates to a huge cemetery to go look for a grave for another rootschatter

I JUST LUV IT
Ancestry subs my kids pay for it as my xmas present, GR subs most of the time get covered by flogging something on ebay so cost is virtually nil apart from the odd cert to confirm an issue thats it.
Share data, certs, photos etc - just be careful when asked to open your tree to a stranger - AND MOST IMPORTANTLY GET YOUR SIBLINGS TO PAY YOUR SUBS AS A BIRTHDAY OR XMAS PRESENT.
the boring bit is waiting on someone to ask for a grave hunt
