`data.frame` and `⁠stringsAsFactors`

[lorenzwalthert]

From the README:

tibble() does much less than data.frame(): it never changes the type of the inputs (e.g. it never converts strings to factors!)

This sounds outdated as of R 4.0.0 and might be confusing to users who are not familiar with the old behavior. Albeit one of the biggest confusions around data.frame is no longer true (fortunately), there are many more that could inherit its position in the README.

[IndrajeetPatil]

This is repeated in a few places, and so Lorenz's comment also applies here:

tibble/README.Rmd

Line 81 in e9db4f4

The tibble print method draws inspiration from [data.table](https://rdatatable.gitlab.io/data.table), and [frame](https://github.com/patperry/r-frame). Like `data.table::data.table()`, `tibble()` doesn't coerce strings to factors by default, doesn't change column names, and doesn't use rownames.

tibble/vignettes/tibble.Rmd

Lines 20 to 21 in e9db4f4

	They keep the features that have stood the test of time, and drop the features that used to be convenient but are now frustrating (i.e.
	converting character vectors to factors).