Please try to refrain from using contractions. It appears that may be the problem with your postings. Use can not, do not, you are, etc. for a while and see if that will help. Special characters are hanging up in the system and creating blank postings. Please take note of your posting to DnJ...you didn't use special characters and your posting appeared just fine.
Also, I think you can fix your own postings if you hit quick quote and remove the quote marks at the beginning and ending of your posting. Please try the quick quote and then hit submit the next time a posting disappears and see if that will work for you.
I will try to restore your postings when I can, but I am not here 24/7 and usually pop in a couple of times a day.