User blog comment:LimeyGreg/Changing the Meta/@comment-8506165-20130909161608/@comment-8506165-20130910011955

Death streak gold was increased because of Proxy Singed. He needs to feed about 10 kills before he becomes worth less than a minion now. And give the enemy team at least 1.2k in gold before he even drops below 100G. About 8% of the money a single champ needs for full build.

But if that wasn't enough, there are numerous counters - anyone that can facetank a minion wave, anyone that does well out of roaming after a couple of kills under their belt, snowball items, support suicides, donating early kills on Singed to the jungler so they can put more pressure on other lanes, Nasus (farm for Nasus > farm for Singed), etc...

It can work. But on the other hand, the result can be as I witnessed in a recent game - proxy Singed vs Ryze, Ryze ended up with three Rods of Ages as well as his Tear and Sorcs. Sure, Singed had all his minion gold, but he was worth rather less to his team than a Ryze who could instagib the ADC while still being fairly tanky.