I wouldn't trust weev's perspective on this right now; his world is currently being specifically controlled by design to maximize his "rehabilitation" by keeping him in a state of constant stress. His lawyer's job is (literally, if you read his law society's rules) to create controversy while facilitating his client through the legal system, because the Lawyer ultimately works for the Courts first, the People second, and his Client third. Weev is not receiving accurate/valuable information while in jail (guards aren't going to tell you why they're moving you), and his lawyer is probably more focused on appeals than his treatment in jail. You will probably not see a mention of this segregation anywhere in the Defendant's future filings.
More than likely, someone got wind in General Population that he was a computer nerd, and an easy mark. he was probably moved to "Administrative Segregation" in order to protect him. Often, effeminate or homosexual males will be put in some sort of protective custody. This segregation is regularly done for retaliation, but all things considered, it's better than the alternative: Guards look the other way while people up for murder/abuse you in your cell.
The downfall of most Administrative Segregation is that the prisoner is now amongst the other segregated prisoners. usually, these prisoners are heavily-drugged, and wander aimlessly, unless they're being lined up for another dose of drugs. This tends to put the observing prisoners in a deep state of depression. I have personally witnessed (within a 2 week period of solitary) more than 10 people break down and ask the guards for drugs, because they were feeling suicidal in the protective environment.
Honestly, it's like sleeping and eating in your bathroom. I hope weev doesn't lose sight of that fact amongst all the "correction" he's experiencing.