Hmm, well...
I have a 'bit' of a tree on ancestry but I haven't included my 'sources'!!!
I found out the hard way, I pay & others prey!
I have found several 'wrong' trees with a lot of my info. which I have 'sourced' (although I don't show where sourced) as well as info. added which doesn't add up i.e. how does anyone find out where that info. was from?
At the moment I have a 2 x g g/mother (who was widowed when she married my 2 x g g/father), who had (genuinely) between both marriages, 9 children (all sourced) yet on at least 1 tree she has 15 children, some of who were born to my 2 x g g/father prior to her marrying her 1st husband

My 3 x g g/mother had 5 kids to her 1st marriage yet only 3 of those appear on said tree with only 2 with 'almost' correct yrs.
She had 4 kids with my 2 x g g/father (all sourced) yet on said tree they had 12 kids

I may now send a message to owner of that tree as I'm flummoxed as to where the extra kids were found as they certainly aren't on any Parish Records or Census' & maybe, just maybe, I'm missing vital info. which up until now was/is unknown to me

Annie