mintplant/node-querystring — comment on commit 3cb712a407156ea2b023e853f2792bb616b3bce6
File: lib/querystring.js line 38
By kennethkufluk:

if(!isNaN(ret) && ret.toString()==str) return ret;

Twitter ids are larger than JS integer limits, so automatic conversion to Number will create inaccuracies.