[yakcyll]

If a piece of copyrighted artistic work is only being used for private pleasure, who cares?

Copyright doesn't, for sure.

[Ekaros]

If a computer game or software is only distributed to be played or used on private machines, who cares?

[tpxl]

Wat. Most computer games are distributed to be played on private machines. Everyone cares, especially the copyright owners.

[manholio]

Depending on how you acquired the work, copyright most certainly does care.