There has been some recent activity over on GitHub, so here's another pass at issues that could probably be closed, or otherwise be dealt with:
#65 - oldest open issue. Someone offered code translation to TCL, but this ultimately went nowhere. User has since deleted his GitHub account, so it's likely impossible to work out proper attribution etc. for the code made available in a zip file
#126 - another issue with Google Maps or the plus.codes website, so can only be decided one way or the other by a Googler
#134 - replied to, not actually a bug/issue
#155 - replied to, not actually a bug/issue
#248 - replied to, seems outside of OLC scope; Doug explicitly stated that he doesn't see this progressing on your end
#358 - discussing the merits of OLC vs. other technologies; this comparison is already a part of the documentation, so no current issue; discussion seems to have run its course
#371 - Doug suggested rephrasing the Wiki, which has been accepted by creator of the issue. Apparently, the Wiki can only be edited by the repo owner(?), so please do and close this one as fixed.