Wix has kept users in dilemma by creating the new blog with its great UI & new features whereas lacking a lot (& I literally mean, a lot of basic) features.
Whereas the same stands true vice versa as well.
There are very few features that both blogs have in common. And a lot of people expect combined functionalities to be used.
Beginners don't want to create a community for their website (this being the main purpose of new blog) but sure, they want the great UI that New Blog provides, but it lacks a lot of basic functionalities.
New Blog lacks (this is what we expect from New Blog):
Adding color to text & text-background
Adding background color
Adding font style
Ability to Schedule Posts (High Priority - for everyone I guess)
Ability to comment & like the post without signing in (High Priority)
Adding image & video from anywhere in between with no need to scroll down every time (High Priority)
Adding HTML code
Custom text size
Adding a divider
Adding link color (The underline thing is going away, people now use their brand color to display the links) - High Priority
Ability to remove or add the sign-in thing with our choice
Alt Text in image (High Priority) - helps in SEO
Link on image
If there could be a smiley option (without stress, lowest priority)
Move old blog posts automatically to the New Blog Post (High Priority)
These are all very BASIC THINGS A USER WILL EXPECT FROM ANY BLOG.
Or, let's look at what the old blog lacks:
Very Old UI - Not at all attractive
No like post button
No search button (I really appreciate the search button in New Blog :) )
Quote Option missing (The new Wix blog Quote Option is great, only if they could be colorful)
No number of views