Great point R. North.
If it were me I would utilize the == Research Notes == section to explain my beliefs and suggestions, but barring any sources that state otherwise, I would NOT be altering a profile, expecially if it is not under my care.
I have various ancestors who fought in the American Revolution (albeit on the OTHER side!) and all of my assumptions that are not backed up with solid sources are in the Research Notes, to be proven or diproven at a later date.
I hope this answers your question R.