Why Do People Get Mad When TNA Signs A WWE Star Or ROH Star?

Why Do People Get Mad When TNA Signs Former WWE Stars OR ROH Stars When WWE Does The Exact Same Thing I Mean WWE Has Signed CM Punk Mickie James And They Were Showing Interest On Signing Robert Roode But He Signed Another Contract And Now WWE Is Signing ROH Stars This Is Kinda Messed Up Im My Mind I Mean I Think WWE Wants To Destroy ROH Since There Rumors Of Them About Wanting TO Sign 4 Or 5 Stars From There And That Would In Fact Destroy ROH