Ask HN: Am I being too spammy with my HN comments?

I recently scratched my own itch and created a résumé building app called Mighty CV. I'm doing some split testing to ensure that my beta sign up page is converting well before I make the move to advertise it more widely. I'm currently getting about a 33% conversion from visitors to sign-up and feel that this figure could be improved. I suspect my red white and blue color scheme is not helping. So I've been keeping my eye open for posts on HN that relate to job hunting, employment or résumés. I then try and post a relevant and sometimes insightful comment which also mentions that you can sign up for the Mighty CV beta.

Problem is this is beginning to feel a bit too spammy. I've only done it a handful of times but wondered what you guys thought? Am I being too cautious here or should I quit doing it. Remember I usually try to write something insightful as well as link to my site. Your thoughts on this matter would be greatly appreciated.

P.S. You can sign up for the private beta at:

http://www.mightycv.com

P.P.S. Hope that doesn't seem too spammy :)