fediverse is made of fragmented communities, each having different levels of community reach and engagement. I post news of the ethnic & communal genocide going on in Manipur, India and knowing that the government led by Hindu supremacist Modi only pays attention to internatonal pressure, cross-post to international news communities. There are 3 such (that I know of) and each has a diferet audience.
It is not for post count nor user recognition nor boosts (none of which are of any value IRL), it is to gather global attention to a barbaric genocide currently taking place in a country recignised by the world as being democratic and whose leader is welcomed and feted by world leaders. Today is the 83rd day of this ethnic & communal genocide, and only the EU Parliament has stepped up to condemn it. You might have seen the news of the 2 womeanded over by cops to themob, to be stripped naked, paraded, molested, and gangraped? It is but one of the 100 such happening, in the words of the state's rotten Chief Minister who is considered by many as an active supporter of the genocide.
I crossspost so every time any country or world leader welcomes him, the citizens of that nation know who their nation welcomes & honours. My effort is only a drop in the ocean and probably worth nothing, but it is essential for the victims that the crimes committed against them are not hidden.