"Judge" for yourself.
“Judge not, that you be not judged. For with what judgment you judge, you will be judged; and with the measure you use, it will be measured back to you. And why do you look at the speck in your brother’s eye, but do not consider the plank in your own eye? Or how can you say to your brother, ‘Let me remove the speck from your eye’; and look, a plank is in your own eye? Hypocrite! First remove the plank from your own eye, and then you will see clearly to remove the speck from your brother’s eye.
Matt 7:1-5
“Judge not, and you shall not be judged. Condemn not, and you shall not be condemned. Forgive, and you will be forgiven. Give, and it will be given to you: good measure, pressed down, shaken together, and running over will be put into your bosom. For with the same measure that you use, it will be measured back to you.”
Lk 6:37,38
Do not judge according to appearance, but judge with righteous judgment.”
Jn 7:24
Who are you to judge another’s servant? To his own master he stands or falls. Indeed, he will be made to stand, for God is able to make him stand.
Rom 14:4 (in context - Rom 14:1-13)
But why do you judge your brother? Or why do you show contempt for your brother? For we shall all stand before the judgment seat of Christ. For it is written:
“As I live, says the Lord,
Every knee shall bow to Me,
And every tongue shall confess to God.”
So then each of us shall give account of himself to God. Therefore let us not judge one another anymore, but rather resolve this, not to put a stumbling block or a cause to fall in our brother’s way.
Rom 14:10-13 (in context - Rom 14:1-13)
For what have I to do with judging those also who are outside? Do you not judge those who are inside? But those who are outside God judges. Therefore “put away from yourselves the evil person.”
1 Cor 5:12,13
If then you have judgments concerning things pertaining to this life, do you appoint those who are least esteemed by the church to judge? I say this to your shame. Is it so, that there is not a wise man among you, not even one, who will be able to judge between his brethren? But brother goes to law against brother, and that before unbelievers!
Now therefore, it is already an utter failure for you that you go to law against one another. Why do you not rather accept wrong? Why do you not rather let yourselves be cheated? No, you yourselves do wrong and cheat, and you do these things to your brethren! Do you not know that the unrighteous will not inherit the kingdom of God?...
1 Cor 6:4-9
Do not speak evil of one another, brethren. He who speaks evil of a brother and judges his brother, speaks evil of the law and judges the law. But if you judge the law, you are not a doer of the law but a judge. There is one Lawgiver, who is able to save and to destroy. Who are you to judge another?
James 4:11,12
Sometimes, the person (or organization) that judges has an entire forest jammed in their own eye, not just a plank. Scripturally, there is basis for judgement within the church. It's unfortunate that the WTS doesn't have the truth and in reality they're judging outside the church because they aren't God's church. God will be their judge.