Your question doesn't make clear (in my view) as to where you're asking about, ie. leaving your "thoughts and feedback" about this site? or another site (as you pasted details that refer to askubuntu.com).
If it's askubuntu.com; I've heard of many other users who've mentioned problems and restrictions at that (and other Stack Exchange sites), as Stack Exchange does keep records of every strike against your email (be it off-topic, downvotes and more), which can soon put in the the red (bad; think accounting) if you don't have sufficient black (upvotes) recorded against your email address... that's how I understand it anyway.
I'll assume you're asking about askubuntu.
I'm not a moderator at askubuntu, though my rep. does qualify me as an TU (trusted user) for the site, but everyone gets downvotes, the key with that site is to get more upvotes I gather.
Myself I've asked almost no questions (had used the site a number of years before I asked my first question, and that was really a leading question so another could answer it & thus we'd publish something there), and you can get more upvotes via answers as I understand it (in fact years ago, it was answers alone that got you rep).
Some of the people I've heard complain about Stack Exchange (including of course Ask Ubuntu) are actually Ubuntu members; which means (at least to me) that they've proven their credentials (esp. in regards open source).
I fear the site (Stack Exchange & Ask Ubuntu) does make it too easy to downvote questions; hey only downvoting an answer will cause the downvoter to lose a little of their [own] rep (ie. downvoting questions has no cost; downvoting an answer costs the downvoter & answer.writer rep), but the hope is (I believe) readers will upvote questions that you read where you believe the question/answer was well researched, a good & useful question etc; alas we'll all have different views on what is good/bad anyway.
If some of us see a newcomer or someone who's making an effort, and trying to answer questions, and doing it well, we may try and encourage them by opening up some of their answers, and upvoting the answers we feel were answered well; meaning someone will benefit 30 or more rep. points (30 points = 3 upvotes in example) in quick succession, allowing them to move forward; but even that action maybe a result of them just giving a single well written/researched answer to a question that got the attention of a mod/tu/etc using the site often. This sort of action is intended to motivate and encourage more positive actions from someone who has shown promise.
I wouldn't worry about askubuntu; you can still use it to read other questions/answers, and if you have questions, Ubuntu Forums is usually found as being more welcoming (moderation a little less strict) if you need to seek help, and don't forget about this actual Ubuntu-MATE site.
I'd encourage you to try and answer questions at askubuntu if/when you can; but most of the negative comments I'm aware of about askubuntu are from people that have chosen to just avoid anything Stack Exchange related. I've even heard Ask Ubuntu mods talk about this topic, but they've still got to stick to Stack Exchange rules & rating system.