I'll try a syllogism:

1. 1aajpztNecNzGBDjJhGfkrsUJFgeyhBgY and 1aa5cmqmvQq8YQTEqcTmW7dfBNuFwgdCD and other addresses starting with "1aa" are collecting efficiently the dust with amaclin methods (same 'k' and P2PK outputs) . "1aa5cmqmv...." was reported here from amaclin too as an example: https://bitcointalk.org/index.php?topic=1175321.msg12405319#msg12405319. To me they seem amaclin addresses.

2. 1aaf64VJGMuYuRBMmM9y2s2pPADFpuqDE started to collect dust before priv keys were announced on internet. It stopped 1 hour before to release the keys. An example, 8 september: https://www.blocktrail.com/BTC/tx/e198f3608705e1654a3d0d2ce56bdc5b81f0bfc9e1597a268eebcd124881773b

3. "1aa5cmq..." is an input for a transaction to "1aaf64...." here: https://www.blocktrail.com/BTC/tx/b80ca4aa385f2a0a91b7625eab05df6e8e20fd81c53ba4c3fd1a1efc2fe056fd

4. "1aajpz..." is an input TOGETHER a "1aaf64...." input for a transaction here: https://www.blocktrail.com/BTC/tx/ca0447b99a1fd68fc157b9cd45343f4793ec9d47818d0375d51675113110d99a

5. Supposed result: these addresses belongs to amaclin and amaclin is behind coinwallet.eu stress-test/giveaway.


EDIT: point five was just a bad joke. A right 5 could be:

5. "1aaf64..." started to collect dust before priv keys were publicly announced and it is probably an amaclin vanity address.