As for me, I just tag my raid boss and share it on public. Since it's 100% sure someone will nuke it or do huge damage. As for players sharing their bosses, I just tag it also. Tho if there are multiple raids i do pick the highest level since it nets you the highest reward. (atm im halfway in getting the last dress bloom then moving on to skill blooms)

Oh and that statement above only applies to normal raid bosses and the occasional event ones. For SB it's a whole different story, Overhit my SB 3 times and i'll boot you out of my list Tho I only share it within my helper list.