Its’ bad enough that WT’s doctrine on disfellowshipping is unscriptural. WT had to yet invent another non-Biblical rule that no clapping or applause is allowed when reinstatement announcements are made as can be seen from the Feb 2000 Kingdom Ministry page 7:
Question Box
Is it appropriate to applaud when a reinstatement is announced?
In his loving-kindness, Jehovah God has provided a Scriptural way for repentant wrongdoers to regain his favor and achieve reinstatement in the Christian congregation. (Ps. 51:12, 17) When this takes place, we are encouraged to confirm our love for such sincerely repentant ones.—2 Cor. 2:6-8.
Even so, as joyful as we are when a relative or acquaintance is reinstated, a quiet dignity should prevail at the time that the person’s reinstatement is announced in the congregation. The Watchtower of October 1, 1998, page 17, expressed matters this way: “We must remember, however, that most in the congregation are not aware of the particular circumstances that led to a person’s expulsion or to his reinstatement. In addition, there may be some who have been personally affected or hurt—perhaps even on a long-term basis—by the wrongdoing of the repentant one. Being sensitive to such matters, therefore, when an announcement of reinstatement is made, we would understandably withhold expressions of welcome until such can be made on a personal basis.”
Although we are very happy to see someone return to the truth, applause at the time of his or her reinstatement would not be appropriate.
Apparently the Angels don’t keep quiet! WT forgot to mention Luke 15:7 which describes how Angels feel about one who repents: ‘I tell you that thus there will be more rejoicing in heaven over one sinner that repents than over nine-nine righteous ones who have no need of repentance’