I'd think it's more likely that the person asking for donations wasn't actually Bruno, but the same scammer.
Although it's more probable than a Bruno Zombie, I still think that's quite unlikely. The address to which Bruno requested donations be sent (1FkHCFv8PN1kerJct3RsQQpMcRoTnx2vWe) was an old address. I checked it before sending my donation to make sure the account wasn't hacked. I recall getting lots of google results with Phinnaeus Gage and was able to confirm that the address had been posted by Bruno as early as 2012. Doing a search for the address now seems return all the same results, but the address is missing from the messages posted. I think it must have been in Phinnaeus Gage's signature or personal text.
They probably just kept the money there for as long as possible or until the attention died down on him a bit. Seems a mighty coincidence that the funds move then his account here reactivates. Looks to me like it was just his last ditch attempt to solicit more donations.
The timing is suspicious, but there may be a reasonable expiation. Bruno's personal effects were probably given to his relatives only recently, either after his will was read to all his relatives or the trust was disbursed. If that's the case then it would make perfect sense that the funds were moved at or near the same time someone got a hold of the device he used to access the forum.
I certainly could be one of his relatives that made the recent posts. This relative saw that Bruno was respected here and was able to convince the community to contribute to his last request. Then the greed set in, and the relative decided to take advantage of the situation.