I cannot speak for all those who use this web interface, but I have
heard very positive comments about it over the years. The “comment via
web interface” feature seems to be in regular use (as far as I can tell
from the logs) and by different people (new contributors as well as old
ones). I received enough bug reports about the initial implementation
of the search to know that this, too, is used enthusiastically.
What I don’t know is if this is*enough* for those who crave the elusive
“modern”-looking web interface, and would really much rather see us use
Gitlab or Github. The features that this web interface offers are
obviously different from those of Github and Gitlab, and some are
difficult to provide due to the design of Debbugs.