I can only confirm what @thepixelizer said: Most animators 'can' showcase their work on Newgrounds.
If one of your videos was removed, you have gotten a private message about that. (If so: Maybe for breaking copyright? Did you get permission to use the music?)
Otherwise, your video must have been, to put it politely "the worst". Our community is _extremely_ forgiving when it comes to weaving poorly made amateur content through the Under Judgement phase. (If your video was blammed it was probably because you submitted a Thai Dub on an English speaking website. Newgrounds is just the wrong audience for that.)
Also: Please do not just re-upload videos when they get blammed. It's against the rules:
https://www.newgrounds.com/wiki/help-information/content-submission
https://www.newgrounds.com/wiki/help-information/terms-of-use/movie-guidelines
shintsukimi205
I assume you're referring to animations being "blammed", right?
It's been a hot minute since I've been here--but from what I checked and refreshed myself with, votes (at least ~100 of them accumulated together) are a deciding factor on whether the animations stay or not; No time limit, no view count requirement, and all.
With this re-iterated, I wouldn't say your words aren't too ridiculous.