How the connection of all accounts has been made in the first place?

Tor IPs are shared and modify themselves from time to time, so several people will share the same Tor IP if they use Tor, while the IP of a same person probably will change during his Tor section. I think the user has no control over it.

Any confirmation from admins that the accounts are probable alts of Eal? Or any blockchain evidence connecting the accounts?

Almost all of the above accounts that are claiming the PD giveaway share the same Non Tor/VPN IP as EAL on their Primedice accounts. This is petty low level giveaway scamming, I wouldn't trust EAL given this information and I don't think he should remain a Staff member of this forum.

Here is my question: Were these pre-generated addresses (and the corresponding private keys) created BEFORE the encryption, or AFTER the encryption?