There are many reasons why I may not want to join the party. I may simply not want to play Dota at that time. This one's easy to deal with - I just alt tab out and pretend to be afk, helped by the game appending (Idle) onto my name. Other times I'm already in a party. Definitely don't feel bad turning down an invite in this case, but should I tell my inviter?
Sometimes I just want to farm items by watching prestigious tournaments such as the Macedonia Dota 2 Cup 4. Then I get assaulted by the eagle eyed inviters who fire one my way the moment I'm done spectating one game. I can't feign afk, because I want to watch the next game. And how do I explain to them that I'd rather watch dota than play it (and I'm a dirty hat hoarder)
So tl;dr: do you give a reason when you decline party invites?
>Game is hard.
PS. Please don't stop inviting me friends