Yes, Soylent might not be pefect. Doesn't mean status quo is better.
The soylent community is pretty clear on the point this impatient guy is asking about: yes, the problem that arises when you had shitty nutrition before goes away inside a week or two, and just eat some Beano in the mean time. Haven't seen anyone who has presented evidence otherwise.
For me personally, there was zero issue; I had lots of fiber before, and soylent doesn't make me gassy at all.
http://techcrunch.com/2014/08/18/ubiome-raises-4-5m-from-ang...
I think you might be having a reaction to the high soluble fiber content of Soylent. The best thing you can do is restrict yourself to 12 oz (which you drink slowly, sipping every few minutes) of Soylent for a meal, and intermingle with other foods throughout the day (use Soylent for no more than 1-2 meals per day).
If that helps, you can probably ease into more after your digestion is stable for a couple of weeks.
We're working on our next formulation of Soylent which will hopefully address people like yourself that are experiencing more severe effects, at least in part, so I hope that you'll stay tuned. I can't guarantee that the product will be 100% gluten-free at that time (we won't know until it passes certification), though that is something we are aiming for.
A redditor claims Activia Yogurt helps (http://www.reddit.com/r/Fitness/comments/2056nq/finally_foun...)