This weekend is the 20th anniversary of the legislation.
The Salvation Army has issued a statement of regret saying it understands its opposition to the bill was deeply hurtful.
But activist Bill Logan says the statement is too light and too easy.
He says the Salvation Army played a leading part in a homophobic campaign, but it still doesn't understand the damage it did.
Mr Logan says the suicide rate went up during that period, but the Salvation Army does not realise that its actions claimed lives.