I put 2 Thessalonians 2, in group 3; openly engaging in warfare against God. I usually take the position that nothing can be proved from scripture, because everyone interprets scripture differently; so I chose to not use Paul and leave his judgement to God. Paul is brilliant and not prone to silly mistakes, which causes me to doubt that Paul wrote 2 Thessalonians 2; because it contains silly mistakes. These errors could be the effect of interpretation/translation but I don't think so; Paul, brilliant and with the equivalent of a Phd in OT scripture would know about "the day of the Lord" mentioned 31 times in the KJV OT and prophesied by almost every prophet, is the great and terrible day of the Lord, where God's anger becomes unbridled; Paul equates "the day of the Lord" with the gathering together of his brethren in the presence of Jesus. It is amazing how each different translation changes the story; the introduction by translators to the chapter suggests Paul is warning against expecting the day of the Lord prematurely; if he was warning about the expecting of the return of Christ prematurely that would be different. What worries me most is verse 5; in verse 4 the man of sin presumes to be God, then in verse 5 Paul speaks as did Christ: "Remember ye not, that, when I was with you, I told you these things?
John 13:19 (RSV)
19 I tell you this now, before it takes place, that when it does take place you may believe that I am he.