Yeah its funny when someone has a trip report that entails them abusing the fuck out of something, having a bad experience and then warning people to "stay away from that shit."
I'm not sure how much of this story I believe, since it's pretty much impossible to binge on MDMA. It takes at least 3 or 4 days between hits for your body to clear it out; trying to do it more often is pointless as it won't get you high.
Ecstacy is also a drug that doesn't get you higher the more you take; it may heighten side effects (like darting eyes and teeth clenching), but it won't make you FEEL and higher. Anyone who's done E for any length of time knows these things.
I'm a big guy and any more than two pills is pointless for me. Taking 5 or 6 in a night just isn't going to do anything except make you feel bad the next day.
In a way it's cool that E kind of has these safeguards built in since it really discourages binging.
Binging E will empty your wallet and that's about it.
As far as how your brain is, if you really did all the things you say you did then I would guess your brain was in pretty bad shape BEFORE you took any drugs.
Anyone who does all that without realizing it's a bad, bad idea isn't playing with a full deck. But hey, we can't all be geniuses. We need guys like you to bag our groceries!
I say keep at it and enjoy. Don't worry about your brain and it won't worry about you!