Alright, we are getting a couple of flags on this threads, so I do wanna ask people to try and maintain civil conversation.
Adding to what @joannekwan and others have stated, Tapas does have its posting limits, as do most hosting sites.
Often times, it is a matter of finding the right site that makes posting comfortable for you, or finding ways to work within those limitations.
On the bright side, there are other sites that do not have character limitations. Unfortunately, I am familiar with the novel-posting scene, so my recommendations are mostly sites I've posted my own personal writing:
Tumblr (which has been pretty good with fanfic writing and original writing -- this also has a tagging system and a way to customize your pages).
Wattpad (again -- great for original writing and fanfic writing)
Fictionpress.com (which is the sister site of Fanfiction.net. This one hosts more original writing than fanfics)
Archive of Our Own (mostly known for its fanfics, but is has a nice tagging system for original works.)
If anyone else can chime in with other recs, that would be awesome! Though these are the places I work with. In general, it does help to expand and work with several sites to see what does and doesn't work with you.