Anecdotal evidence here, but high estrogen doesn't negatively affect my erections. On the contrary, I feel great with higher estrogen. Only Deca gives me a floppy donkey dick.I don't remember which issue is caused by e2, but estrogen causes erection issues yes. I simply just run compounds that balance my e2 so I never have this issue aside from diet or emotional factors.
I'll bet most of these people getting bigger dicks (myself included, I gained a lot) on steroid cycles are simply burning away their FUPA. lol...