Gridcoin's proof-of-research is not decentralized: it relies on the BOINC project servers. So it shares all the same centralization flaws as FoldingCoin which relies on the Folding@Home servers.
Gridcoin is a little different because if you remove the BOINC project servers, it is not centralized anymore, and only relies on proof-of-stake. But this would make it no different that the many proof-of-stake altcoins that already exist.
Gridcoin is a little different because if you remove the BOINC project servers, it is not centralized anymore, and only relies on proof-of-stake. But this would make it no different that the many proof-of-stake altcoins that already exist.