config files usage inconsistencies

Moin moin,

- Assume "tinrc" is a symlink: with each invocation of tin this
symlink is deleted/ replaced by a plain file. The same does not
happen for "filter" or "posted". For backup-convenience purposes
it would be nice if the symlink for "tinrc" remained intact, too.

- "newsrctable" doesn't understand '~' or $SHELLVAR expansion, so
if I want to use files not in ~ but somewhere deeper below, then
the paths will not be portable. Can this be implemented easily?

-- 
© Rado S. -- You must provide YOUR effort for your goal!
Even if it seems insignificant, in fact EVERY effort counts
for a shared task, at least to show your deserving attitude.