Just an FYI, Pew is blocking anyone that does around $500 worth of their HITs for the year. I haven't been blocked personally, as I haven't done that many yet, but I know some that have. This is the response from Pew about it, when the idea of blocking by qual instead was brought up :
"Thanks for letting me know about that – I’ll plan on migrating our code to use a qualification instead of a block in future batches. In the meantime, I’m not sure where that conversation is happening (can’t find anything on the typical forums) but the block is currently placed at $500 for annual 2019 total compensation – if you can let people know about it then hopefully they can stop before hitting it. My apologies for the inconvenience, there’s nothing in the Amazon documentation that mentions that blocks have a negative consequence for workers! Very sorry about that! Thanks for helping us with our research and for the valuable feedback!"
So if you think you're getting close to that mark, you may want to stop to avoid a block.
"Thanks for letting me know about that – I’ll plan on migrating our code to use a qualification instead of a block in future batches. In the meantime, I’m not sure where that conversation is happening (can’t find anything on the typical forums) but the block is currently placed at $500 for annual 2019 total compensation – if you can let people know about it then hopefully they can stop before hitting it. My apologies for the inconvenience, there’s nothing in the Amazon documentation that mentions that blocks have a negative consequence for workers! Very sorry about that! Thanks for helping us with our research and for the valuable feedback!"
So if you think you're getting close to that mark, you may want to stop to avoid a block.