Oh I guess my remark became totally useless since lintr 2.0.0 came out on CRAN recently. I should note that old options are still valid, though, so I can keep the following in my init.el file:
(flycheck-lintr-linters
"with_defaults(assignment_linter=NULL, camel_case_linter=NULL, commented_code_linter=NULL,
absolute_paths_linter=NULL, line_length_linter(120))")
Not that I am a big fan of camel case, but Bioconductor folks are apparently. #rstats #emacs