As I had stated earlier in my first paragraph, the topic of ornaments and other issues are more prevalent within the KB community. As stated, this is not an issue of discussion within them unless it is perpetuated by an evangelist from the south propagating it.
Who can stop one from participating in the Lord's table? Can an elder who is influenced by money and make his bread through crooked means tell a drug addict not to participate in the Lord's table? No, they can't, that is why you see all this happening in the churches here. There is a parable about the wheat and tares (Mathew 13.24-30), these things are bound to happen.
You should be assured of your own conviction and faith in Christ. The aspect lies in you being impartial and bearing that testimony. Not expect what the other brother should/need to do. If you are convinced that there is no issue in a person wearing ornaments or some other matter. You should communicate it in the manner the spirit guides you (Colossians 4:6). If you do, nobody can stand against you. (James 4.7)
You need not worry about whether the church has a good testimony. What I mean is that, if you are convinced by Christ and bear a great (or good) testimony, your life will reflect on people in the church who watch you. And people will see you as the mirror of all what Christ was (I Cor 11.1). Through you and like-minded believers, the church would be protected and guided by Christ.
Last but not the least. Though she said that, do you believe that the glory of God left Israel permanently? No, it did not. It did come back. And through David and Solomon, Israel entered the glorious golden age of their tribes. It did come and go but look at it this way. Today because of the grace of God, you, me or any brother burdened with such issues should look at one thing.
Micah 4:5 (KJV)
For all people, will walk everyone in the name of his god, and we will walk in the name of the LORD our God for ever and ever.
If you believe this. You are the man of God. We all are. It is great privilege. We forget it many a times.