Lets break the points down, shall we?
> introduces himself to the men in a group but ignores the women
Just bad behavior. Hard to say anything else about such a general claim. I can't say I share this experience.
> makes eye contact with the men while speaking and ignores the women
Well if you make eye contact with women today, some get offended so easily that they write blog posts and even accuse men of being creeps. If we don't, obviously we do not respect you.
> asks a woman if she is a plus one at the event acts surprised to discover a woman knows about cryptocurrencies
Not weird at all, how many women have you met that knows a lot about cryptocurrencies? Seriously, this is just statistics. Of course people are going to be surprised of this. It's like being mad about a person acting suprised in learning that another person never have taken a car ride.
> comments on the woman’s appearance rather than what she is saying
Most men are attracted to women in general, so unless this is in a moment that is highly unprofessional I am not surprised. However, I have pretty much never witnessed this except on psuedo-anonymous places like comment sections on internet, never IRL in a professional context.
Personally, I follow people because what they do / what they have to say. I also believe most men do that. I am very tired of feminism and this constant nagging. In fact, it is my experience that women follow and judges people a lot more based on their looks and not what they actually have to say.