Yes, chess.com Staff look at all reports, but they don't usually contact the one who made the report. Sometimes the reported member is given a warning, other times muted, in more extreme cases banned.
If you ever do make a report which requires you being contacted back (which is less common), then chess.com support will usually email you within 3 business days.
You can be sure that chess.com Staff looks into all reports.
p.s. chess.com Moderators (like myself) just help chess.com Staff and keep the site running smoothly (like moderating the forum threads, or chess.com events etc.), but don't usually look into reports themselves. That would most likely be the role of chess.com support department (which are all Staff).
do thay look at the reports because i reported someone but nothing