If he was trying to make the point that new readers are important too and that Marvel was going to try to reach out to them, he did it in a very ill-phrased way.

In the past couple years Marvel decided to get with the times and attract a younger, hipper, more socially-conscious audience ... the diametric opposite of their older readers. Culture War knife-fights like these were inevitable, but Marvel had their heads too far buried in the sand to anticipate this.  

This "Twitter War" is significant that Marvel employees are involved. The misogyny expressed is shameful. But the rift between Marvel and their bread-and-butter readers has just turned into a chasm. I don't think there are enough new readers that can fill that gap, for Marvel to continue as a financially viable comic book publisher. 

So I didn't ask who Steven Wacker was in a sarcastic and insulting tone. I was actually curious as to what his position was. At this point, I don't know if he's a Stan Lee issuing statements, or an Irving Forbush who found the password to the Twitter account. So thanksa lot for the answer.

The message isn't mean, rude, or insulting. He's right; Marvel SHOULD be treating every fan as if s/he was that long time true believer, be it five minutes or five decades. It just seems that, from what I've gleaned, that hasn't been Marvel's style for a damned long time. Switching characters' identities, annual huge crossovers (requiring cash outlays that even some of the longest duration fans are a little hesitant to invest in), and making things seem pretty hard for a new fan to just step in and start reading don't say to me that a five minute fan is being treated well at all.

No, Wacker was defending a fellow editor from a torrent of misogynistic abuse directed at her for the terrible offence of posting a selfie of herself and some fellow editors on Twitter.