I know business is a dog eat dog world out there, but this is Blockland Forums, it's not like he's the head of a multi-million dollar industry, but at least give this guy some credit and stop stuffting on his progress by advertising free posters that you make in paint.
He probably uses something like Photoshop which costs somewhere around 100-500 dollars and requires actual skill to make them rather than taking an avatar pic using an ingame addon, googling an interesting picture and stuff-cropping it behind the avatar and then adding some funky font text to it.
Really though, if you want to go through the trouble of telling everybody that A DOLLAR IMAGE is overpriced make your own god damn thread about it, and don't post here.
What do you think would happen if someone else advertised their own game on here and said it was better than blockland? You'd probably get banned.
Do everyone a favor and leave immediately if you decide to screw his progress. This man has quality work and probably spent a lot of time on it, so leave him be.