My view on this is: Firstly, I hate explaining myself to Arcanist. When prompted to explain the reason for too long lines I typically enter "wontfix" without thinking too much. Secondly, I really don't like how warnings clutter code reviews. I have my Emacs highlight text beyond 80th column with a really ugly colour, so I strive real hard to maintain 80-column limit whenever possible. But sometimes fitting in that limit is nearly impossible: imagine being in a let nested in a do-notation nested in a guard nested in a where clause. Approx. 15-20 columns are lost for the indentation. Nevertheless I would support introducing a hard limit on having no more than 80 columns. Janek PS. It makes me really sad that we don't have any coding convention for GHC: we mix camelCase with underscore_case, indentation is inconsistent (good thing we at least got rid of tabs!), whitespace usage is inconsistent, etc. I could make this list very long. --- Politechnika Åódzka Lodz University of Technology TreÅÄ tej wiadomoÅci zawiera informacje przeznaczone tylko dla adresata. Jeżeli nie jesteÅcie PaÅstwo jej adresatem, bÄ dź otrzymaliÅcie jÄ przez pomyÅkÄ prosimy o powiadomienie o tym nadawcy oraz trwaÅe jej usuniÄcie. This email contains information intended solely for the use of the individual to whom it is addressed. If you are not the intended recipient or if you have received this message in error, please notify the sender and delete it from your system.