Don't persist timeout-based opt-out

Fixes sindresorhusgh-39

lib/index.js

@@ -8,6 +8,7 @@ var assign = require('object-assign');
 var debounce = require('lodash.debounce');
 var inquirer = require('inquirer');
 var providers = require('./providers');
+var temporaryOptOut;
 
 function Insight(options) {
 	options = options || {};
@@ -44,7 +45,7 @@ function Insight(options) {
 
 Object.defineProperty(Insight.prototype, 'optOut', {
 	get: function () {
-		return this.config.get('optOut');
+		return temporaryOptOut || this.config.get('optOut');
 	},
 	set: function (val) {
 		this.config.set('optOut', val);
@@ -128,10 +129,10 @@ Insight.prototype.askPermission = function (msg, cb) {
 		// stop listening for stdin
 		prompt.close();
 
-		// automatically opt out
-		this.optOut = true;
+		// automatically (but temporarily) opt out
+		temporaryOptOut = true;
 		cb(null, false);
-	}.bind(this), this._permissionTimeout * 1000);
+	}, this._permissionTimeout * 1000);
 };
 
 module.exports = Insight;