May i please ask you, why you think its exact copy of another site, for us exact copy would be if someone tries to copy the code or at least design etc.
Pitchmantra is designed and developed ground up, using PHP Yii and Bootstrap 3, using various APIs etc.
here is list of advantages
a) publishers list are tracked on weekly basis and updated once in a month actively
- we have browsed through 1000+ sites and curated list of only publishers link which are active (for example Gigaom.com is now shutdown and allthingsd is merged with wsj)
b) In addition to delivering pitch to 100+ publisher we also submit manually startup details to startup listing/directories sites like killerstartups.com, etc and this is again based on product and region of the startup
c) By submitting your startup on listing sites, you got good quality backlinks, SEO benefits, social media mentions etc.
d) After factoring discount of $30, we are charging only $39 for BOTH the service (vs. other provider charging between $49 and $75 for one service)
now, regarding your question about spammy part, we don't think so it will be considered as spam, since all these publisher and listing sites wants startup to pitch to them.
Happy to answer if any more question.