I purposely changed my password and mail that way my account would be "dead",
Oww... if you changed your email as well, I'm out of ideas, sorry. :(
and well then why cannot we delete an account in Warlight RvW?
I'm not Fizzer, so I cannot give a definite answer. However, I am a programmer and one possible
reason would be database integrity. WL stores all games ever played *) and all forum posts. If you remove a player account, you cannot properly store a game in which that player played, same problem with forum threads in which that account posted. You could try some hacky semi-solutions, but chances are it will get very messy and not really work properly anyway.
*) Except map-testing games, for reasons which are actually kinda related to data integrity.
Because I remember to have read somewhere that (at least in Europe according to the European Law) you have a right to delete an account in any website, do not let the right to delete an account or the right "to be forgotten" is against the law, just saying.
I'm no lawyer, so please forgive me if there's some rough edges and I might get some details wrong, but in broad strokes:
The "right to be forgotten" applies to search engines. The idea behind the law is something like this:
Let's say person X gets arrested, for some reason their trial gets tons of media attention and after much stuff, they get cleared of all charges. A little while later, they apply for a new job. The HR department sees the resume, goes to Google and searches for "person X" (their name). First page is still filled with "Person X arrested on (very bad) charges" ("Person X innocent" gets buried on page 20+ or something)...
Now, asking the newspapers to remove all those articles from their archives would be bad (since it would mean censoring history). The "right to be forgotten" tries to address the issue by preventing search engines from returning "accurate, but no longer relevant (and unnecessarily damaging)" results.
I see no way in which the right to be forgotten could possibly apply to WL. Storing old games is just an archive and they are exactly the things which are not
affected. (Also, it's a Europe-only right; with WL not having a European version, it would be very awkward to try to get it to comply with it. Keep in mind that even when a result gets removed
from European versions of the Google index, it will still be found when you search on a non-European version of Google and/or from an IP address for which Google can determine it's non-European.
The law about removing accounts does (more or less) exist, except it's not about accounts, it's about personal information. Again, European law does not apply to Warlight, but even if it did (or, if the USA happens to have a similar law), it would not allow you to demand removal of the account, it would only let you demand the removal of personal information (such as zeroing out your email address; I'm unsure whether it would allow you to demand the removal of public chat and forum posts... I don't think so). A further restriction is that you can only demand removal if the information is no longer necessary; if you ever paid with a credit card, WL would be well within its rights (probably would be forced) to keep
that information, because financial laws (accountability) require it.