This has been a discussed before but maybe tech advancements have now made it possible:
When downloading, the name of the file becomes tiddlywiki .htm Is it possible to have it automatically named like $:/SiteTitle? It is annoying with saved all the files named so you don't quite know what TW it is.
There is
recent discussion about a slugifier (basically to convert a strings into simple characters) which I imagine could be a needed functionality for this.
<:-)