sadly MOST things posted to FR must be excerpted.
Yes, however, you can normally can post up to 300 words from most sites (count here ) or about 5-10% of an article, and at least the first 100 word summary or lead will be seen in the FR Articles page (if you choose Text) - and under Settings you can select up to 250 articles to be shown
Supplemental: An exhortation to those who post thread (normally post as much of the meat of the article as allowed, describe videos, etc.)