Ancaps and Ancoms are two groups that have the core concept correct but can't let go of the two party system. They need a divide or an "others" group or their online superior complex dies. Anarchy is Anarchy if commies wanna make a commune let them, if capitalists want to sell their goods and services let them.
Discussion
I don't think you understand the landscape that well. As an ancap I thought ancoms would be on my side, since my whole thing is just anarchy, just voluntary everything. They're not open to even talking. Most of them are extremely closedminded, some just misled. Those closed minded ones create the divide. Try reaching out to one about this. You'll see.
That good both ways.
I have talked with many ancaps and ancoms and it's pretty equal on the "my way or the highway" attitude. I can say I tend to prefer more ancap ideas to ancom ideas but I'm not opposed at all to commies buying some land or just going out in the woods even and setting up a commune if that's what they want to do.
Those guys are fine, I like them. Anyone who's against that kind of thing isn't a real anarchist, "ancap" or not. There are dipshits in every movement who are inconsistent or toxic, usually both. Some communities are completely overrun with it. The reddit ancaps are not representative of the whole population of ancaps, and the specifically inconsistent ancaps are even less so.
I am not as familiar with ancoms outside of social media, but the same principle holds. The vast majority of supposed anarcho-communists I've talked to, including ones in person, were closed minded fools or open minded people being told by closed minded fools in yheor community not to talk to outsiders.